Temperature Control Patents (Class 429/62)
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Patent number: 9692091Abstract: In a battery pack having an improved cooling structure, unit cells, an internal cooling fan and a drive motor are arranged in an inside space of a housing. The inside space of the housing is completely sealed. The drive motor drives the internal cooling fan to supply cooling air. The cooling air circulates in the inside space of the housing to cool the unit cells. Radiation fins are formed on at least one specific exterior surface of the housing. The specific exterior surface has a superior radiation capability which is higher than that of each of the other exterior surfaces of the housing. The cooling air is supplied in turn surfaces of the unit cells and interior surface of the housing corresponding to the exterior surface on which the radiation fins are formed.Type: GrantFiled: June 26, 2014Date of Patent: June 27, 2017Assignee: DENSO CORPORATIONInventors: Hiroyoshi Yamamoto, Yoshimitsu Inoue
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Patent number: 9660245Abstract: Provided is a battery cell including: an electrode assembly including a first electrode part, a second electrode part, and a separation membrane; a first terminal and a second terminal extending in a first direction or a fourth direction which is an opposite direction to the first direction from the first electrode part and the second electrode part, respectively; a first lead tap and a second lead tap connected to the first terminal and the second terminal, respectively; and a case in which the electrode assembly, the first terminal, and the second terminal are accommodated, which is sealed to expose the first lead tap and the second lead tap to the outside, and in which a sealing part sealed by coating a sealing member on circumferential sides joined with each other is formed.Type: GrantFiled: February 15, 2013Date of Patent: May 23, 2017Assignee: SK INNOVATION CO., LTD.Inventor: Ming Zhe Kong
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Patent number: 9649908Abstract: A heat pump cycle includes a refrigerant circuit and a coolant circuit. A first heat exchanger and a second heat exchanger are disposed between the refrigerant circuit and the coolant circuit. The first heat exchanger includes an exterior heat exchanger that functions as an evaporator in a heating operation, and a radiator for radiating heat of a coolant. The second heat exchanger transmits a heat of high-pressure refrigerant to the coolant in the heating operation. A temperature of refrigerant within the second heat exchanger is higher than a temperature of refrigerant within the first heat exchanger. The heat obtained from the second heat exchanger is supplied to the first heat exchanger through the coolant. Further, the heat obtained from the second heat exchanger is stored in the coolant. In defrosting operation, the coolant that has stored the heat therein is supplied to the first heat exchanger.Type: GrantFiled: February 18, 2013Date of Patent: May 16, 2017Assignee: DENSO CORPORATIONInventors: Masayuki Takeuchi, Seiji Inoue, Takashi Yamanaka
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Patent number: 9653724Abstract: A secondary battery according to the present disclosure includes a cell assembly including a unit cell having at least one non-coated passage formed across an electrode plate, a temperature sensor including a temperature sensing unit located within the non-coated passage and a sensor lead extending from the temperature sensing unit, and a battery case to receive the cell assembly and which is sealed in a state that the sensor lead is drawn outside. According to the present disclosure, a temperature change of the secondary battery may be measured quickly and correctly, and thus, the secondary battery may be controlled more minutely in response to a temperature change, and gas generated in the battery case during charging and discharging of the secondary battery may be easily discharged to a surrounding area of the cell assembly, thereby preventing a battery efficiency reduction phenomenon.Type: GrantFiled: September 3, 2014Date of Patent: May 16, 2017Assignee: LG Chem, Ltd.Inventor: Seong-Yoon Lim
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Patent number: 9647257Abstract: A battery pack is disclosed. In one aspect, the battery pack includes a plurality of battery cells and a monitoring portion including a plurality of lines respectively electrically connected to the battery cells. The lines include a positive current line, a negative current line, and at least one monitoring line. The battery pack further includes a connector including a plurality of connector pins formed therein, wherein the connector pins are respectively electrically connected to the lines of the monitoring portion, and a protective circuit module accommodating the connector therein. The connector pins have different lengths.Type: GrantFiled: January 21, 2015Date of Patent: May 9, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Hun-Tae Ro, Ji-Hwan Seol
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Patent number: 9634518Abstract: In order to improve the performance of a battery power supply unit for a bicycle electronic device at low atmospheric temperature, when its temperature is less than or equal to a lower temperature threshold, electrical energy is supplied by the power supply unit to a heating element thermally coupled with the power supply unit that, in this way, self-heats. Part of the electrical energy of the power supply unit can be simultaneously supplied to the electronic device.Type: GrantFiled: July 2, 2007Date of Patent: April 25, 2017Assignee: Campagnolo S.r.l.Inventor: Federico Miglioranza
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Patent number: 9630600Abstract: A central control entity controls all actuators of a chassis control system of a motor vehicle. To select a combination of actuator operations best suited for influencing the handling of the motor vehicle, the effect of a change of settings of motor vehicle actuators on the handling is predicted by an observer device configured to receive at least one sensor signal from a sensor via a signal input and, depending on the sensor signal, to determine at least one estimated value for a slip resistance of the motor vehicle. The controller is configured by operating the controller in a test motor vehicle that has a sensor for a measured variable, for which the observer device determines an estimated value. The estimated values from the controller are then compared with corresponding measured values.Type: GrantFiled: December 6, 2012Date of Patent: April 25, 2017Assignee: AUDI AGInventor: Anron Obermüller
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Patent number: 9601737Abstract: A lithium-ion secondary battery separator resolves defects of a non-woven fabric separator which is not suitable for use in such a battery. The separator is thin and does not short-circuit and has excellent electrolyte retainability and rate characteristics. The separator includes a composite of a non-woven fabric having a basis weight of 2 to 20 g/m2 formed from fibers of a thermoplastic material having an average fiber diameter of 5 to 40 ?m and ultra-microfibers having an average fiber diameter of 1 ?m or less in an amount of ? to 3 times the mass of the non-woven fabric. The composite has a thickness of 10 to 40 ?m after heat-pressing treatment under conditions that the non-woven fabric has a glossiness (JIS Z 8741) measured at 60° in the range of 3 to 30 and a thickness of 10 to 40.Type: GrantFiled: May 21, 2013Date of Patent: March 21, 2017Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Hiroaki Konishi, Atsuo Omaru, Yuji Tsuruta
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Patent number: 9502708Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.Type: GrantFiled: May 1, 2014Date of Patent: November 22, 2016Assignee: EC Power, LLCInventors: Chao-Yang Wang, Shanhai GE
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Patent number: 9502714Abstract: Disclosed is a mixed metal oxide comprising Na, M1, and M2, where M1 represents at least one element selected from the group consisting of Mg, Ca, Sr, and Ba; and M2 represents at least one element selected from the group consisting of Mn, Fe, Co, and Ni, wherein the molar ratio of Na:M1:M2 is a:b:1, where a is a value within the range of not less than 0.5 and less than 1; b is a value within the range of more than 0 and not more than 0.5; and “a+b” is a value within the range of more than 0.5 and not more than 1. An electrode having an active material containing the mixed metal oxide is also disclosed. Further disclosed is an electrode containing the electrode active material as well as a sodium secondary battery comprising the electrode as a positive electrode.Type: GrantFiled: March 10, 2010Date of Patent: November 22, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Kuze, Masami Makidera, Taketsugu Yamamoto
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Patent number: 9494652Abstract: The embodiments described herein include a system and a method. One embodiment provides a sensing apparatus for a battery system having a plurality of cells. The sensing apparatus includes an elongated substrate configured to extend along one side of the plurality of cells and a plurality of sensors, each corresponding to a respective one of the plurality of cells, and each configured to contact its respective cell.Type: GrantFiled: January 14, 2013Date of Patent: November 15, 2016Assignee: Johnson Controls Technology CompanyInventor: Gary P. Houchin-Miller
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Patent number: 9490464Abstract: Disclosed are a secondary battery including an electrode assembly which includes a first electrode plate and a second electrode plate arranged as a stack, and a separator interposed between the first electrode plate and the second electrode plate, the first electrode plate including a first active material coating part formed by coating a base with a first active material and a first non-coating part, the second electrode plate including the second active material coating part formed by coating a base with a second active material and a second non-coating part, and the first non-coating part including an insulating member in a portion corresponding to the second electrode plate.Type: GrantFiled: August 19, 2011Date of Patent: November 8, 2016Assignee: SAMSUNG SDI CO., LTD.Inventor: Chang-Bum Ahn
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Patent number: 9484563Abstract: A battery pack includes a sealed case and a battery cell accommodated in the sealed case. The sealed case includes a case body, which has an opening, and a lid member, which is fixed to the case body by a plurality of bolts and closes the opening. When distances between adjacent ones of the bolts are compared, the distance between a specific adjacent pair of the bolts is greater than that between any other adjacent pair of the remaining bolts.Type: GrantFiled: June 19, 2014Date of Patent: November 1, 2016Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Fumihiko Ishiguro, Takayuki Kato, Hiromi Ueda, Hirohisa Kato
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Patent number: 9478810Abstract: A battery includes at least one battery module having a lower face, a cooling plate having an upper face, and a fixing system configured for the at least one battery module. The battery module is arranged on the upper face of the cooling plate. The fixing system includes at least two rails running at a distance from each other. The at least one battery module is fixed on the cooling plate by the rails in such a way that the lower face of the battery module is in direct contact with the upper face of the cooling plate. A motor vehicle includes the battery.Type: GrantFiled: February 28, 2011Date of Patent: October 25, 2016Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbHInventors: Boris Gendlin, Marc Dill, Ralf Angerbauer, Conrad Bubeck, Andreas Rueble
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Patent number: 9455427Abstract: A battery having a plurality of voltage-generating cells in which a plate-shaped intermediate element having elastic ribs at least on one side thereof is arranged at least between adjacent voltage-generating cells.Type: GrantFiled: December 23, 2010Date of Patent: September 27, 2016Assignee: Samsung SDI Co., Ltd.Inventors: Martin Michelitsch, Stefan Röpke, Matthias Pucher, Rainer Unterberger
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Patent number: 9431659Abstract: Provided are an electrode binder for a secondary battery including an amine-based compound expressed by Chemical Formula 1 below and water-based binder particles including at least one carboxyl group as an end group, a method of preparing the same, and an electrode for a secondary battery including the electrode binder for a secondary batteryType: GrantFiled: July 25, 2014Date of Patent: August 30, 2016Assignee: LG CHEM, LTD.Inventors: Jang Bae Kim, Im Goo Choi, Byoung Bae Lee, Woo Ha Kim, Bong Hyun Jeong, Kyoung Hun Kim, Ji Hye Yang
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Patent number: 9431686Abstract: A cell module comprises: a cell stack comprising multiple cells which are electrically connected to each other; a plate-shaped heat dissipating member arranged such that it extends along a direction in which the multiple cells are arranged, and such that it is thermally connected to the multiple cells ; and an intervening layer arranged between the cell stack and the heat dissipating member, and configured to allow heat to propagate from the cell stack to the heat dissipating member, and to suppress a relative displacement between the cell stack and the heat dissipating member.Type: GrantFiled: February 16, 2012Date of Patent: August 30, 2016Assignee: SANYO ELECTRIC CO., LTD.Inventors: Tetsuji Omura, Mayumi Nakasato, Fusanori Watanabe
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Patent number: 9431647Abstract: A high voltage battery for vehicles includes an electrode tab that is divided into a first part placed near a battery cell and a second part placed near a terminal. A pouch packages the battery cell therein. A housing is packaged in an interior of the pouch together with the battery cell and has an opening. A first part extension and a second part extension extend from the first part and the second part, respectively, that are inserted into the housing through the opening, and that come into contact with each other in the housing. A cushion is inserted in the housing and compresses the first part extension and the second part extension such that the first part extension and the second part extension come into close contact with each other.Type: GrantFiled: June 4, 2014Date of Patent: August 30, 2016Assignee: HYUNDAI MOTOR COMPANYInventors: Sung Min Choi, Seung Ho Ahn, Hong Seok Min
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Patent number: 9428071Abstract: A hybrid powertrain system includes a battery cell and at least one controller programmed to output an average internal resistance of the cell for a sliding window time period. A mean electrical impedance is calculated by the controller based on a quotient of a Fast Fourier Transform (FFT) of a voltage output by the cell and a FFT of current input to the cell. An average internal resistance is calculated by the controller based on the mean electrical impedance. The controller may further control the cell according to the average internal resistance.Type: GrantFiled: January 14, 2014Date of Patent: August 30, 2016Assignee: Ford Global Technologies, LLCInventor: Tae-Kyung Lee
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Patent number: 9368843Abstract: A battery pack includes a plurality of prismatic format batteries in a stacked configuration. Flexible graphite sheet heat spreaders are interposed between adjacent prismatic batteries in the stack. A heat sink extends the length of the stack of prismatic format batteries. But heat spreader major surfaces contact the heat sink and extend into the heat sink by at least 30 percent of the thru-thickness of the heat sink.Type: GrantFiled: May 30, 2013Date of Patent: June 14, 2016Assignee: GrafTech International Holdings, Inc.Inventors: Richard Allen Beyerle, II, Ian Andrew McCallum, Martin David Smalc, Jonathan Andrew Taylor, Ryan J. Wayne
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Patent number: 9368838Abstract: A battery module is configured such that n series blocks 20, each having m cells 10 connected in series, are connected in parallel. Adjacent cells 10 are connected in parallel via a first fusible link 30. One end of each of the series block 20 is connected to an input/output terminal 50 via a second fusible link 40. The number m of the cells 10 and the number n of the series blocks satisfy the formulas (1) and (2): m?½[Vc/Rc·If1?Rf1/Rc+3]??(1) n?(Vc+If2·Rc)/[Vc?(m?1)If2·Rc]??(2) where Vc and Rc represent an electromotive voltage and an internal resistance of the cell 10, respectively; Rf1 and If1 represent a resistance and a fuse current of the first fusible link 30, respectively; and If2 represents a fuse current of the second fusible link 40.Type: GrantFiled: January 29, 2013Date of Patent: June 14, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takashi Nakagawa, Toshiki Itoi
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Patent number: 9362590Abstract: A lithium ion secondary battery is provided, including: a positive electrode and a negative electrode into which, and from which, lithium ions can be introduced and be discharged reversibly, and an electrolyte membrane placed therebetween, wherein the electrolyte membrane is obtained using an electrolyte made by blending (A) a polyanion type lithium salt, (B) a boron compound, and (C) an organic solvent.Type: GrantFiled: October 18, 2011Date of Patent: June 7, 2016Assignees: SEKISUI CHEMICAL CO., LTD., MIE UNIVERSITYInventors: Kenichi Shinmei, Masashi Kanoh, Rasika Dasanayake Aluthge, Masaru Heishi, Takahito Itoh
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Patent number: 9362570Abstract: A battery assembly for a medical device includes an elongate cathode, an elongate anode, an electrolyte, and an elongate housing assembly encapsulating the cathode, the anode, and the electrolyte. The battery assembly also includes a first electrode exposed from and electrically insulated from the housing assembly. One of the anode and the cathode is electrically coupled to the first electrode, and the other of the anode and the cathode is electrically coupled to the housing assembly. Respective axes of the cathode and the anode are substantially parallel to an axis of the housing assembly, and the cathode and anode each include a flat portion that face each other.Type: GrantFiled: October 13, 2014Date of Patent: June 7, 2016Assignee: Medtronic, Inc.Inventors: Jeffrey S. Lund, Steven J. May, Donald R. Merritt, Hailiang Zhao
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Patent number: 9350053Abstract: The invention relates to an energy storage device (1) for generating an n-phase supply voltage for an electric machine (2), wherein n?1, with n energy supply branches which are connected in parallel and which can each be connected to one of n phase conductors (2a, 2b, 2c), wherein each of the energy supply branches has a large number of energy storage modules (1a, 1b) which are connected in series and which each comprise: an energy storage cell module (5, 7) which has at least one energy storage cell (5a, 7a) and a coupling device (3), which is designed to connect the energy storage cell module (5, 7) selectively into the respective energy supply branch or to bridge said energy storage cell module, wherein in each case at least one of the energy storage modules (1b) also has in each case one heating element (8) for the at least one energy storage cell (7a); and a heating device (9), which is connected to the heating elements (8) and which is designed to actuate the heating elements (8) for heating the energyType: GrantFiled: April 12, 2012Date of Patent: May 24, 2016Assignee: Robert Bosch GmbHInventors: Peter Feuerstack, Erik Weissenborn, Martin Kessler
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Patent number: 9350042Abstract: The nonaqueous electrolyte secondary battery includes a wound electrode body in which a positive and a negative electrode plates are wound with a separator therebetween and an air gap portion is formed at the winding axis center. A negative electrode collector tab is joined to a negative electrode exposed portion on the winding start side. This collector tab is bent so as to be touched and joined to the inside bottom portion of a battery exterior can at the position corresponding to the air gap portion. In a plan view, the air gap portion of is formed in a shape having an arc portion and a chord portion. In a plan view, the negative electrode collector tab is made to be linear along the chord portion of the negative electrode exposed portion on the winding start side, and is joined to the negative electrode exposed portion at this chord portion.Type: GrantFiled: January 24, 2012Date of Patent: May 24, 2016Assignee: SANYO Electric Co., Ltd.Inventor: Hiromitsu Suwa
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Patent number: 9333862Abstract: A control device for an AC electric vehicle that is applied to a configuration in which an SIV is connected to an intermediate DC circuit unit between a CONV that converts an AC voltage input through a main transformer to a DC voltage and an INV that converts the DC voltage to an AC voltage, in which a carrier frequency fc of the CONV is changed on the basis of initial temperature (initial value of Tcnv) of a converter main circuit element when a vehicle is stopped and input current Isiv of the SIV such that a temperature variation of a converter main circuit element when the vehicle is stopped is reduced.Type: GrantFiled: June 28, 2012Date of Patent: May 10, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takeo Matsumoto, Kotaro Matsuda
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Patent number: 9312527Abstract: A separator (1) having heat resistant insulation layers for an electric device includes a resin porous substrate (2), and heat resistant insulation layers (3) formed on both surfaces of the resin porous substrate (2) and containing heat resistant particles having a melting point or a thermal softening point of 150° C. or higher. A parameter X represented by the following mathematical formula 1 is greater than or equal to 0.15: X = ( A ? + A ? ) C × ( A ? / A ? ) 2 [ Math ? ? 1 ] where A? and A? represent thicknesses (?m) of the respective heat resistant insulation layers (3) formed on both surfaces of the resin porous substrate (2) while fulfilling a condition of A??A?, and C represents the entire thickness (?m) of the separator (1) having heat resistant insulation layers.Type: GrantFiled: June 13, 2012Date of Patent: April 12, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Hironobu Muramatsu, Tamaki Hirai, Kazuki Miyatake
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Patent number: 9283826Abstract: A device for cooling a heat source of a motor vehicle, including a cooling body (7) which is in thermal contact with the heat source, a first fluid stream for the discharge of heat being capable of flowing to the cooling body (7), wherein at least one second fluid stream for the discharge of heat can flow selectably to the cooling body (7).Type: GrantFiled: November 13, 2008Date of Patent: March 15, 2016Assignee: MAHLE International GmbHInventors: Thomas Heckenberger, Conrad Pfender, Dirk Neumeister, Guenther Feuerecker, Manuel Wehowski, Roland Burk, Hans-Georg Herrmann, Tobias Isermeyer, Florian Moldovan, Martin Steinbach
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Patent number: 9261093Abstract: A system includes a controller, battery pack, fluid, heater, a pump that circulates the fluid to the battery pack through the heater, and a temperature sensor positioned between the heater and battery pack. The controller processes temperature signals from the sensor, diagnoses the pump and heater by turning on the pump in response to a received enabling signal, calculates an absolute value of a temperature gradient of the fluid while the pump remains on, and records a passing pump diagnostic code if the absolute value of the temperature gradient exceeds a calibrated rate. The controller executes a heater diagnostic, after calculating the absolute value of the temperature gradient, only when heating is requested or the absolute value of the temperature gradient does not exceed the calibrated rate. The heater diagnostic includes turning off the pump, cycling the heater on and off, and monitoring the temperature signals for a temperature rise.Type: GrantFiled: August 15, 2012Date of Patent: February 16, 2016Assignee: GM Global Technology Operations LLCInventor: Scott M. Skelton
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Patent number: 9252466Abstract: A battery pack assembly allowing automated single ended bonding directly between a battery cell and a Printed Circuit Board (PCB) is disclosed. The pack assembly comprises: a caddy, soft and malleable pad, plastic cell lattice, PCB, and plurality of ultrasonic wire or ribbon bonds. The pad includes a first group of apertures and is set on the top of battery cells. The cell lattice includes a second group of apertures and is set on the top of the pad. The PCB includes a third group of apertures and is set on the top of the cell lattice. The ultrasonic wire or ribbon bonds directly connect positive and negative contacts of the battery cells with the PCB. A battery pack assembly allowing equalizing of the temperature potentials of every battery cell in the pack is also disclosed. The pack assembly comprises: a phase change material, soft and malleable pad, and caddy.Type: GrantFiled: November 25, 2010Date of Patent: February 2, 2016Assignee: CHEEVC LTD.Inventor: Kenneth Hamilton Norton
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Patent number: 9252408Abstract: The heater module wire connection structure for a battery pack includes a battery pack (11), and first and second heater modules (22L, 23L) which warm the inside of the battery pack and have lead wires (44L, 45L) connected thereto. Further, the heater module wire connection structure includes a power supply cable (42) to which the lead wires of the first and second heater modules are crimped and connected, and a temperature sensor (43C) which is placed inside of the battery pack and detects the temperature of the first heater module (23L). The lead wire (45L) of the first heater module, the temperature of which is detectable by the temperature sensor, and the lead wire (44L) of the second heater module (22L), the temperature of which is not detectable by the temperature sensor, are simultaneously crimped and connected to the same position on the power supply cable.Type: GrantFiled: February 28, 2012Date of Patent: February 2, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Yukiko Kinoshita, Naoto Todoroki
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Patent number: 9236587Abstract: Disclosed is a battery module having a plurality of battery cells, the battery module including a cell module stack having a structure in which a plurality of cell modules having the battery cells mounted in cartridges is vertically stacked, a lower end plate supporting a lower end of the cell module stack, and an upper end plate fixing an uppermost cartridge of the cell module stack disposed on the lower end plate, wherein the cartridges and the upper and lower end plates are provided with through holes formed such that the through holes communicate with one another, a fixing member is inserted through the through holes and coupled to the upper and lower end plates, and the fixing member and the through holes are configured to have a horizontal sectional structure to restrain rotation of the fixing member when rotational force for fastening is applied to the fixing member.Type: GrantFiled: February 5, 2013Date of Patent: January 12, 2016Assignee: LG CHEM, LTD.Inventors: BumHyun Lee, Jong Moon Yoon, Yong Shik Shin, Jin Kyu Lee
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Patent number: 9219268Abstract: An embodiment of the present invention provides a rechargeable secondary battery, which can rapidly cut off charge and/or discharge paths by a force provided from an elastic force offering part in addition to fusion of a fuse when an external short circuit or overcharge occurs to the rechargeable secondary battery. To this end, there is provided a rechargeable secondary battery including: a case; an electrode assembly in the case; a collector plate coupled to the electrode assembly and comprising a fuse part; a terminal coupled to the collector plate and extending to an outside of the case; and an elastic force offering part between the case and the collector plate.Type: GrantFiled: June 12, 2013Date of Patent: December 22, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Minhyung Guen, Yongchul Seo
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Patent number: 9209499Abstract: A battery pack includes a plurality of battery modules including at least a first group of the battery modules and a second group of the battery modules, a first coolant flow pathway through the battery modules of the first group and the second group, a second coolant flow pathway along an exterior of the battery modules of the first group, and a converging coolant flow pathway connected with the first coolant flow pathway, the converging coolant flow pathway being disposed downstream of the first group of the battery modules, the converging coolant flow pathway joining the second coolant flow pathway with the first coolant flow pathway.Type: GrantFiled: April 2, 2014Date of Patent: December 8, 2015Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbHInventors: Seung-Woo Yang, In-Hwan Cha
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Patent number: 9209502Abstract: The present invention provides a non-aqueous electrolyte secondary battery with great high-rate discharge properties while being less susceptible to an extensive internal short circuit and likely to provide proper assembly. The non-aqueous electrolyte secondary battery comprises a separator (13) placed between a positive electrode and a negative electrode. Separator (13) comprises a porous resin layer (60), and a porous heat-resistant layer (70) overlaid at least on a first face of resin layer (60). Heat-resistant layer (70) comprises a filler consisting of an inorganic material, and a binder. Heat-resistant layer (70) has a porosity of 55% or higher. Heat-resistant layer (70) exhibits a 90° peel strength of 2.9 N/m to 15.1 N/m to the resin layer (60).Type: GrantFiled: March 16, 2011Date of Patent: December 8, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tomoyoshi Ueki, Harunari Shimamura, Yusuke Fukumoto
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Patent number: 9203069Abstract: Provided is a secondary battery including a battery cell having a cathode tab and an anode tab formed at one side thereof; a pouch formed so as to be enclose and seal the battery cell so that the cathode tab and the anode tab of the battery cell are protruded to the outside; and a shape memory alloy provided in the pouch and having a bent part bent in a specific shape and penetrating through and opening the pouch while being unbent at the time of an increase in a temperature of the battery cell, to discharge gas generated in the pouch when the gas is generated in the pouch due to an increase in a temperature caused by overcharging, overdischarging, and the like, to expand the pouch, thereby making it possible to prevent ignition and explosion.Type: GrantFiled: June 7, 2012Date of Patent: December 1, 2015Assignee: SK INNOVATION CO., LTD.Inventor: Jae Myoung Lee
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Patent number: 9190652Abstract: A layered solid-state battery that includes a first unit cell, a second unit cell, and an internal collection layer that is disposed to intervene between the first unit cell and the second unit cell. Each of the unit cells is constituted of a positive electrode layer, a solid electrolyte layer, and a negative electrode layer that are sequentially stacked. The internal collection layer is disposed to be in contact with each of the negative electrode layers of the unit cells. Also, the internal collection layer contains an electron conductive material and an ion-conductively electrically conductive specific conductive material.Type: GrantFiled: February 8, 2013Date of Patent: November 17, 2015Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takeshi Hayashi, Masutaka Ouchi, Kunio Nishida, Makoto Yoshioka
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Patent number: 9178247Abstract: The present invention provides a lithium composite metal oxide containing Li and at least one transition metal element, wherein at least one lithium composite metal oxide particle constituting the lithium composite metal oxide has both hexagonal and monoclinic crystal structures. Further, the present invention also provides a lithium composite metal oxide containing Li, Ni and M (where, M represents one or more kinds of transition metal elements selected from the group consisting of Mn, Co and Fe), having a diffraction peak (diffraction peak A) at an angle 2? in a range from 20° to 23° in a powder X-ray diffraction pattern of a lithium composite metal oxide which is obtained by powder X-ray diffraction measurement made in the condition that CuK? is used as a radiation source and the measurement range of diffraction angle 2? is in a range from 10° to 90°.Type: GrantFiled: September 6, 2007Date of Patent: November 3, 2015Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yuichiro Imanari, Yoshihiro Kawakami, Yoshiaki Honda, Hiroshi Inukai
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Patent number: 9178198Abstract: A separator for a rechargeable lithium battery includes a porous substrate; and a coating layer disposed on one or more sides of the porous substrate, the coating layer including organic particles and a binder polymer, wherein the organic particles include a material different from that of the binder polymer and the binder polymer is included in the coating layer in an amount in a range of 50 to 99 wt % based on the total amount of the coating layer, and a rechargeable lithium battery including the same.Type: GrantFiled: August 29, 2012Date of Patent: November 3, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Jung-Ock Yeou, Ihn Kim, Sam-Jin Park, Kwi-Seok Choi
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Patent number: 9163887Abstract: A battery cooling structure includes a cooling plate and a heat transfer sheet. The cooling plate is to cool a battery module including a plurality of battery cells arranged side by side. The heat transfer sheet is provided between the cooling plate and a cooling surface of the battery module to transfer heat from the cooling surface to the cooling plate. The heat transfer sheet is deformable by a pressure applied to the heat transfer sheet. The heat transfer sheet includes a positioning hole through which the cooling surface of the battery module is visible when the heat transfer sheet is assembled to the battery module.Type: GrantFiled: November 8, 2012Date of Patent: October 20, 2015Assignee: HONDA MOTOR CO., LTD.Inventors: Goichi Katayama, Koichi Yamamoto
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Patent number: 9153820Abstract: A binder composition for a non-aqueous battery electrode containing a binder and an ether compound represented by the formula (1), and an electrolyte solution composition for a non-aqueous battery containing an ether compound represented by the formula (1), wherein m and n each independently represent 0 or 1, and R1 represents a divalent linear hydrocarbon group which may have in the bond thereof one or more intervening groups selected from the group consisting of an oxygen atom, a sulfur atom, and a carbonyl group.Type: GrantFiled: June 28, 2011Date of Patent: October 6, 2015Assignee: ZEON CORPORATIONInventors: Kei Sakamoto, Natsuko Nakata, Yasuhiro Wakizaka
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Patent number: 9123919Abstract: An embodiment of the present invention provides a rechargeable battery that prevents generation of a crack under the longitudinal compression condition by increasing an elongation ratio to a part of the bottom of the case to prevent an internal short-circuit. A rechargeable battery according to an exemplary embodiment of the present invention includes: a case receiving an electrode assembly; a cap plate covering an opening of the case; and an electrode terminal provided in the cap plate and electrically connected to the electrode assembly, the case includes side walls connected with each other and forming the opening in one side and a bottom connecting neighboring side walls at the opposite side of the opening for sealing, and the bottom a first elongation portion having a first elongation ratio and a second elongation portion having a second elongation ratio that is higher than the first elongation ratio.Type: GrantFiled: March 13, 2013Date of Patent: September 1, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Ji-Won Yun
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Patent number: 9118068Abstract: A layered solid-state battery that includes a first unit cell, a second unit cell, and an internal collection layer that is disposed to intervene between the unit cells. Each of the unit cells includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer that are sequentially stacked. The internal collection layer has one side surface that is in contact with the positive electrode layer of the first unit cell and the other side surface that is in contact with the negative electrode layer of the second unit cell. Also, the internal collection layer contains an electron conductive material and an ion-conductively insulating specific conductive material.Type: GrantFiled: February 8, 2013Date of Patent: August 25, 2015Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takeshi Hayashi, Masutaka Ouchi, Kunio Nishida, Makoto Yoshioka
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Patent number: 9112234Abstract: Provided is a cylindrical battery in which an electrode assembly fabricated by rolling a cathode/separator/anode and an electrolyte are provided in a cylindrical can, wherein a cap assembly mounted on the opening top of the cylindrical can comprises: a safety vent provided with a predetermined notch, to allow breakage due to high-pressure gas of the battery, a current interruptive device to interrupt current, welded to the bottom of the safety vent, and a gasket for the current interruptive device to surround the periphery of the current interruptive device, wherein the current interruptive device comprises two or more through holes to allow exhaustion of gas, wherein the through holes have a size of 20 to 50% with respect to the total area of the current interruptive device.Type: GrantFiled: November 9, 2011Date of Patent: August 18, 2015Assignee: LG CHEM LTD.Inventors: Ji Young Kim, Jungjin Kim, Kwan Soo Lee, Sungjong Kim, SooRyoung Kim, Chahun Ku, Dukhyun Ryu, Byung kyu Jung
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Patent number: 9099734Abstract: Disclosed is a highly reliable prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock due to vibration, falling, etc. A second insulating member that has a through-hole is disposed between an inversion plate and the first region of a positive electrode collector, and through the through-hole the first region of the positive electrode collector is electrically connected to the inversion plate. First to third projections to formed around the through-hole formed in the second insulating member fit respectively into first to third openings formed in the first region of the positive electrode collector, and the diameters of their apexes are widened, thus forming first to third fixing portions. Thereby, the second insulating member is robustly joined to the first region of the positive electrode collector.Type: GrantFiled: January 25, 2013Date of Patent: August 4, 2015Assignee: SANYO Electric Co., Ltd.Inventors: Yoshinori Yokoyama, Yasuhiro Yamauchi, Toshiyuki Nohma
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Patent number: 9093727Abstract: A cooling system for a battery pack including a tapered first conduit for receiving a fluid therein, a second conduit for receiving the fluid therein, and at least one secondary conduit for receiving the fluid therein, the first conduit in fluid communication with the second conduit through at least one fluid channel formed between a plurality of battery units, wherein the battery units are in heat transfer communication with the at least one fluid channel to transfer heat from the battery units to the fluid disposed in the cooling system.Type: GrantFiled: April 1, 2010Date of Patent: July 28, 2015Assignee: GM Global Technology Operations LLCInventor: Hongguang Sun
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Patent number: 9093723Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes a case, an electrode assembly received by the case, a cap plate combined with the opening of the case, a protective circuit board electrically connected with a first electrode of the electrode assembly, and a protective device attached on a top surface or side surface of the protective circuit board, electrically connected with a second electrode of the electrode assembly, and electrically connected with the protective circuit board.Type: GrantFiled: November 7, 2012Date of Patent: July 28, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Bo-Hyun Byun
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Patent number: 9077036Abstract: A lithium ion secondary battery including a positive electrode; a negative electrode; and an electrolytic solution, wherein the positive electrode includes a first lithium composite oxide and a second lithium composite oxide expressed by following formula (1) as a positive electrode active material, and wherein the second lithium composite oxide has a charge capacity greater than the first lithium composite oxide Li1+a(NibM1cM21?b?c)1.5?0.5aO2??(1) wherein, M1 represents at least one selected from among elements of group 13 to group 15 in an extended periodic table of elements excluding boron B, or carbon C, or nitrogen N, M2 represents at least one selected from among elements of group 3 to group 12, and a, b, and c satisfy relationships of 0.95?a?1.05, 0<b?0.99, and 0<c?0.15.Type: GrantFiled: December 14, 2011Date of Patent: July 7, 2015Assignee: SONY CORPORATIONInventors: Masaharu Senoue, Kenichi Kawase, Takakazu Hirose, Masayuki Ihara
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Patent number: 9065092Abstract: A secondary battery having a protecting circuit module (PCM) and a secondary protection device. The battery includes a metal tab of the PCM and a metal tab of the secondary protection device that are connected to each other on the top of the PCM. One or more of the tabs are bent to bring the tabs in closer proximity to facilitate welding therebetween.Type: GrantFiled: August 16, 2010Date of Patent: June 23, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Woon-Seong Baek, Woo-Choul Kim, Jong-Wook Yoon
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Patent number: 9065116Abstract: A lithium secondary battery positive electrode according to the present invention is a lithium secondary battery positive electrode including a positive electrode material mixture layer containing a positive electrode active material and a conductivity enhancing agent on one or both sides of a current collector, wherein the positive electrode active material contains a lithium-containing composite oxide, the conductivity enhancing agent contains carbon fibers having an average fiber length of 10 nm or more and less than 1000 nm and an average fiber diameter of 1 nm or more and 100 nm or less, and the content of the carbon fibers in the positive electrode material mixture layer is 0.25 mass % or more and 1.5 mass % or less.Type: GrantFiled: March 9, 2011Date of Patent: June 23, 2015Assignee: HITACHI MAXELL, LTD.Inventors: Toshiharu Shimooka, Itaru Gosho, Akira Inaba, Masayuki Yamada, Kazutaka Matsuo, Satoshi Kono