The Hetero Ring Is A Cyclic Carbonate (e.g., Ethylene Carbonate, Propylene Carbonate, Etc.) Patents (Class 429/338)
  • Patent number: 10454137
    Abstract: Provided are a non-aqueous electrolyte solution, which includes (i) a first lithium salt, (ii) lithium bis(fluorosulfonyl)imide as a second lithium salt, (iii) a phosphazene-based compound as a first additive, and (iv) a non-aqueous organic solvent, and a lithium secondary battery including the non-aqueous electrolyte solution. With respect to a lithium secondary battery including the non-aqueous electrolyte solution of the present invention, since a robust solid electrolyte interface (SEI) may be formed on the surface of a negative electrode during initial charge and flame retardancy in a high-temperature environment may be provided to prevent the decomposition of the surface of a positive electrode and an oxidation reaction of the electrolyte solution, output characteristics and capacity characteristics after high-temperature storage as well as output characteristics may be improved.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: October 22, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Young Min Lim, Chul Haeng Lee
  • Patent number: 10411302
    Abstract: A lithium secondary battery includes: a negative electrode, a positive electrode, and an electrolyte disposed between the negative electrode and the positive electrode, wherein the negative electrode includes a silicon composite including silicon, a silicon oxide of the formula SiOx wherein 0<x<2 and disposed on the silicon, and a graphene disposed on the silicon oxide; or a carbonaceous composite including the silicon composite and a carbonaceous material, which is different from the graphene, and wherein at least one of the negative electrode and the electrolyte includes an ionic liquid containing a fluorosulfonyl imide anion, and a lithium salt.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jonghwan Park, Junhyuk Moon, Inhyuk Son, Jaeman Choi
  • Patent number: 10396399
    Abstract: An electrolyte solution capable of providing electrochemical devices whose internal resistance is less likely to increase even after repeated charge and discharge and whose cycle capacity retention ratio is high. The electrolyte solution contains a solvent, an electrolyte salt, and a phosphate in an amount of 0.001 to 15 mass % relative to the solvent and represented by the formula (1): (R11O)(R12O)PO2M, where R11, R12 and M are as defined herein.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: August 27, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Atsushi Maruo, Shigeaki Yamazaki, Hideo Sakata, Shinichi Kinoshita
  • Patent number: 10381685
    Abstract: The present disclosure provides a non-aqueous liquid electrolyte comprising a non-aqueous organic solvent, a lithium salt, and an additive that is an isocyanate-based compound comprising a carbon-carbon triple bond. By comprising the isocyanate-based compound additive comprising a carbon-carbon triple bond of the present disclosure in the non-aqueous liquid electrolyte, lifespan properties and high temperature durability are capable of being enhanced, and internal resistance of a battery is capable of being reduced.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 13, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Sol Ji Park, Chul Haeng Lee, Jeong Woo Oh
  • Patent number: 10355312
    Abstract: The present invention provides an electrolyte solution that is capable of dealing with an increased voltage of an electrochemical device, as well as capable of improving the high-temperature storage characteristics and cycle characteristics of the electrochemical device, and an electrochemical device. The electrolyte solution includes a solvent containing a fluorinated saturated cyclic carbonate and a fluorinated acyclic carbonate; at least one sulfur-containing compound selected from the group consisting of compounds having a —SO2— bond, compounds having a —SO3— bond, and compounds having a —SO4— bond, and an electrolyte salt. The fluorinated acyclic carbonate has a fluorine content of 31.0 to 70.0 mass %.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 16, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroyuki Arima, Hideo Sakata, Shigeaki Yamazaki, Shinichi Kinoshita
  • Patent number: 10340522
    Abstract: A binder composition for a lithium secondary battery, an electrode, and a lithium secondary battery, the binder composition including an interpenetrating network structure that includes a cyclic polymer, the cyclic polymer including a repeating unit represented by Formula 1 or a repeating unit represented by Formula 2; and a copolymer, the copolymer including a repeating unit represented by Formula 3 and a repeating unit represented by Formula 4, wherein an amount of the repeating unit represented by Formula 3 is about 40 mol % to about 70 mol %, based on a total amount of the copolymer:
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 2, 2019
    Assignees: SAMSUNG SDI CO., LTD., Aekyung Chemical Co., Ltd.
    Inventors: Soonsung Suh, Seunguk Kwon, Jaehyuk Kim, Namseon Kim, Soojung Kim, Kwangshik Choi
  • Patent number: 10340497
    Abstract: A secondary battery comprises a cell. The cell includes a positive electrode plate having a positive current collector and a negative electrode plate having a negative current collector. The secondary battery further includes: a first positive electrode tab and a second positive electrode tab, one end of the first positive electrode tab is fixed on and electrically connects with the positive current collector, the other end of the first positive electrode tab extends to the outside of the cell; and/or, a first negative electrode tab and a second negative electrode tab, one end of the first negative electrode tab is fixed on and electrically connects with the negative current collector, the other end of the first negative electrode tab extends to the outside of the cell, one end of the second negative electrode tab is fixed on and electrically connects with the other end of the first negative electrode tab.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: July 2, 2019
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Baojian Zhu, Hong Yang, Qiao Zeng, Jiacai Cai, Shoujiang Xu
  • Patent number: 10276871
    Abstract: A rechargeable lithium battery includes a negative electrode including a negative active material including a silicon-based material and a carbon-based material; and an electrolyte solution, wherein the negative electrode further includes greater than or equal to about 0.01 parts by weight and less than or equal to about 1 part by weight of a compound represented by Chemical Formula 1, based on 100 parts by weight of the negative active material, and at least one, selected from the electrolyte solution and the negative electrode, includes greater than or equal to about 0.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 30, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hokuto Yokotsuji, Hironari Takase
  • Patent number: 10263287
    Abstract: Provided are a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the electrolyte salt including at least one first lithium salt selected from LiPF6, LiBF4, LiN(SO2F)2, LiN(SO2CF3)2, and LiN(SO2C2F5)2, and at least one second lithium salt selected from a lithium salt having an oxalate structure, a lithium salt having a phosphate structure, and a lithium salt having an S?O group, with a sum total of the first lithium salt and the second lithium salt being four or more, and an energy storage device using the same. This nonaqueous electrolytic solution is not only able to improve electrochemical characteristics at a high temperature and much more improve a discharge capacity retention rate and low-temperature output characteristics after a high-temperature storage test but also able to improve low-temperature input characteristics even for high-density electrodes.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: April 16, 2019
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Koji Abe, Kei Shimamoto
  • Patent number: 10247783
    Abstract: Systems and methods for sensing internal states of vehicle batteries are described. From this internal state information, various physical characteristics of the battery can be measured, calculated or inferred. A vehicle can include an electric motor, a battery to store electrical energy for the electric motor, and a sensor connected to the battery to sense a battery state, to receive an input signal, and to wirelessly transmit an output signal indicating the battery state. The vehicle can also include control circuitry to receive the output signal and to control the electric motor and the battery. In examples, the battery may have a physical property that changes based on a state of the battery. This physical property may be measured by the sensor. The sensor may be passive and built into the structure of the battery. The sensor can be a magnetic field sensor or a surface wave acoustic sensor.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Arnold Kweku Mensah-Brown
  • Patent number: 10190225
    Abstract: The present disclosure relates to a copper foil that exhibits surprising low repulsive force characteristics; and to methods for manufacturing such copper foils. Typically, the copper foil has (a) a lightness L* value of the nodule untreated side, based on the L*a*b color system, in the range of 75 to 90 and (b) a normal tensile strength in the range of 40 kgf/mm2 to 55 kgf/mm2. The disclosure further relates to flexible printed circuit boards and electronic devices using the above-mentioned copper foils for forming conductive lines therein.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 29, 2019
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Yao-Sheng Lai, Kuei-Seng Cheng, Jian-Ming Huang
  • Patent number: 10164272
    Abstract: A pinhole determination method for a fuel cell includes steps of blocking air supply to a fuel cell stack by a controller; measuring a cell voltage value of each of unit fuel cells of the fuel cell stack; and determining whether or not a pinhole is present by comparing the cell voltage value with an average cell voltage value.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: December 25, 2018
    Assignee: Hyundai Motor Company
    Inventors: Jung Hwan Ryu, Soon Woo Kwon
  • Patent number: 10096834
    Abstract: A method is provided for manufacturing a polyacrylonitrile-sulfur composite material, the polyacrylonitrile-sulfur composite material having an sp2 hybrid proportion, with respect to the total carbon atoms included in the composite material, of greater than or equal to 85% including the method steps: a) reaction of polyacrylonitrile with sulfur at a temperature of greater than or equal to 450° C., in particular greater than or equal to 550° C.; b) immediate purification of the product obtained in method step a); and c) drying the purified product, if necessary. A composite material manufactured in this way may be used in particular in an active material of a cathode of a lithium-ion battery and offers a particularly high rate capacity. In addition, methods are provided for manufacturing an active material for an electrode, a polyacrylonitrile-sulfur composite material and an energy store.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: October 9, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Martin Tenzer, Malte Rolff, Jean Fanous
  • Patent number: 10090561
    Abstract: In a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a nonaqueous electrolyte containing a lithium salt in a nonaqueous solvent, and a separator disposed between the positive electrode and the negative electrode, an inorganic particle layer is disposed between the positive electrode and the separator, and the nonaqueous solvent contains a chain fluorinated carboxylate ester represented by the formula CH3-XFX—CH2—COO—CH3 (where, x is an integer of 1 to 3) in an amount of 15% by volume or more based on the total amount of the nonaqueous solvent.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: October 2, 2018
    Assignee: PANASONIC CORPORATION
    Inventor: Takanobu Chiga
  • Patent number: 10081875
    Abstract: The present disclosure relates to a copper foil that exhibits surprising low repulsive force characteristics; and to methods for manufacturing such copper foils. Typically, the copper foil has (a) a lightness L* value of the nodule untreated side, based on the L*a*b color system, in the range of 75 to 90 and (b) a normal tensile strength in the range of 40 kgf/mm2 to 55 kgf/mm2. The disclosure further relates to flexible printed circuit boards and electronic devices using the above-mentioned copper foils for forming conductive lines therein.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: September 25, 2018
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Yao-Sheng Lai, Kuei-Seng Cheng, Jian-Ming Huang
  • Patent number: 10079116
    Abstract: Disclosed is an aluminum ion capacitor, including a separator, an anode and a cathode, between which the separator is interposed, and an electrolyte contacting the anode and the cathode, wherein the anode contains aluminum, the electrolyte contains aluminum ions, and an electrical double layer is formed at the cathode and intercalation and deintercalation of aluminum ions are performed at the anode. Accordingly, a supercapacitor having increased energy density can be effectively manufactured at lower cost than lithium ion capacitors, and also, the supercapacitor has high material stability and thus is not limited as to electrode configuration, and an electrode configuration that has a low manufacturing cost and is able to increase energy density and power density can be adopted.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: September 18, 2018
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jung-joon Yoo, Chan-woo Lee, Yong-il Kim, Hae Soo Lee
  • Patent number: 10050255
    Abstract: A rechargeable battery and a method of manufacturing the same, the battery including an electrode assembly, the electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; and a case accommodating the electrode assembly, wherein each of the first and second electrodes includes a coated region having an active material layer on a current collector and an uncoated region free of the active material layer, and in at least one electrode of the first and second electrodes, the current collector is characterized by an x-ray diffraction pattern in which a ratio of an intensity of a largest peak: an intensity of a second largest peak of the current collector in the uncoated region is greater than a ratio of an intensity of a largest peak: an intensity of a second largest peak of the current collector in the coated region.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 14, 2018
    Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbH
    Inventor: Dong-Ho Jeong
  • Patent number: 9991519
    Abstract: An object of the present invention is to provide an electrolytic aluminum foil having no significant difference in properties between one surface and the other surface thereof, and also a method for producing the same. Another object is to provide a current collector for an electrical storage device using the electrolytic aluminum foil, an electrode for an electrical storage device, and an electrical storage device. An electrolytic aluminum foil of the present invention as a means for achieving the object is characterized in that both surfaces of the foil have L* values of 86.00 or more in the L*a*b* color space (SCI method).
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: June 5, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Atsushi Okamoto, Junichi Matsuda
  • Patent number: 9985238
    Abstract: Provided is an electrolytic copper foil significantly useful as electrodes for electronic devices. The electrolytic copper foil used for an electronic device according to the present invention includes copper or copper alloy, the electrolytic copper foil having a 0.2% proof stress of 250 N/mm2 or more after heat treatment at 200° C. for 60 min in a nitrogen atmosphere, wherein at least one of the surfaces of the electrolytic copper foil has a concave-dominant surface profile having a Pv/Pp ratio of 1.2 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp as determined in a rectangular area of 181 ?m by 136 ?m in accordance with JIS B 0601-2001.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: May 29, 2018
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventor: Yoshinori Matsuura
  • Patent number: 9954230
    Abstract: A current collector for a lithium ion secondary battery, on which an electrode mixture layer is formed, satisfies A?0.10 ?m and 6?(B/A)?15 when assuming that a three-dimensional center plane average roughness SRa of a surface of at least one side of the current collector on which the electrode mixture layer is formed is A and a ratio of an actual surface area of the surface of at least one side of the current collector to a geometric area of the surface of at least one side of the current collector, which is (actual surface area)/(geometric area), is B.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: April 24, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Tatsuya Toyama, Shin Takahashi, Atsushi Okamoto
  • Patent number: 9929409
    Abstract: The present invention relates to a battery having an electrode structure using metal fiber and a preparation method of an electrode structure. A preparation method of an electrode structure, according to one embodiment of the present invention, includes a step for providing one or more metal fibers forming a conductive network; a step for providing particle compositions including electrical active materials of a particle shape; a step for mixing the metal fibers and the particle compositions; and a step for compressing the mixed metal fibers and the particle compositions.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 27, 2018
    Assignee: JENAX INC.
    Inventors: Chang Hyeon Kim, Lee Hyun Shin, Chul Hwan Kim
  • Patent number: 9905849
    Abstract: Disclosed are an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode wherein the anode includes lithium titanium oxide (LTO) as an anode active material and the separator is a non-woven separator, and a lithium secondary battery including the same.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: February 27, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Daehong Kim, Youn Kyoung Lee, Soo Hyun Lim, Tae Jin Park
  • Patent number: 9893381
    Abstract: Provided are a nonaqueous electrolyte for secondary batteries containing an electrolyte having high solubility in ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, or a like solvent and capable of forming a good-quality film on the positive and the negative electrode interface and a nonaqueous secondary battery having the nonaqueous electrolyte. Specifically, an electrolyte for secondary batteries containing a lithium salt as a solute and a nonaqueous solvent is provided, the nonaqueous solvent containing a monofluorophosphoric ester salt having general formula 1 or 2, in which symbols are as defined in the description.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: February 13, 2018
    Assignee: KANTO DENKA KOGYO CO., LTD.
    Inventors: Takuro Abe, Osamu Omae
  • Patent number: 9887435
    Abstract: The invention relates to an electrochemical cell for a lithium-ion battery comprising: a negative electrode comprising as an active material silicon; a positive electrode; and an electrolyte positioned between said negative electrode and said positive electrode, said electrolyte comprising at least one lithium salt, at least one carbonate solvent, at least one mononitrile compound and at least one compound fitting at least one of the following formulae (I) and (II): wherein R1 and R2 represent, independently of each other, H, Cl or F, provided that R1 and R2 do not both represent H.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 6, 2018
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Jean-Frederic Martin, Laura Boutafa
  • Patent number: 9847528
    Abstract: A predoping material is used for an alkali metal ion electric storage device and is represented by Formula (1): RSM)n??(1) where M represents lithium or sodium; n represents an integer of 2 to 6; and R represents an aliphatic hydrocarbon, optionally substituted aromatic hydrocarbon, or optionally substituted heterocycle having 1 to 10 carbon atoms).
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: December 19, 2017
    Assignee: SUBARU CORPORATION
    Inventors: Yasuyuki Kiya, Takahito Sakuraba, Satoru Kudo, Ken Baba
  • Patent number: 9831529
    Abstract: A lithium metal battery including: a lithium negative electrode including lithium metal; a positive electrode; and an electrolyte interposed between the lithium negative electrode and the positive electrode, wherein the electrolyte contains non-fluorine substituted ether, which is capable of solvating lithium ions, a fluorine substituted ether represented by the following Formula 1, and a lithium salt, wherein an amount of the fluorine substituted ether represented by Formula 1 is greater than an amount of the non-fluorine substituted ether, R—{O(CH2)a}b—CH2—O—CnF2nH??Formula 1 wherein R is —CmF2mH or —CmF2m+1, n is an integer of 2 or greater, m is an integer of 1 or greater, a is an integer of 1 or 2, and b is 0 or 1.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: November 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wonseok Chang, Tomonobu Mizumo, Toshinori Sugimoto, Hyorang Kang, Joungwon Park, Yonggun Lee, Hongsoo Choi, Hosang Park
  • Patent number: 9812739
    Abstract: The present disclosure discloses an electrolyte additive and its use in a lithium-ion battery. The lithium-ion battery may include an electrolyte solution. The electrolyte solution may include an organic solvent, a lithium salt, and an electrolyte additive. The electrolyte additive may comprise a multi-nitrile compound and a sulfur-oxygen double bond-containing compound. The use of the electrolyte additive in a lithium-ion battery enables the lithium-ion battery to maintain a good cycle life, low-temperature discharge characteristics, and high-temperature storage characteristics even at a high voltage.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 7, 2017
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Wang Kefei
  • Patent number: 9799918
    Abstract: Described are electrolyte compositions and electrochemical devices containing the electrolyte compositions. The compositions include an organosilicon compound, an imide salt and optionally LiPF6. The electrolytes provide improved high-temperature performance and stability and will operate at temperatures as high as 250° C.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 24, 2017
    Assignee: Silatronix, Inc.
    Inventors: Tobias Johnson, Michael Pollina, Liu Zhou, Monica Usrey, Deborah Gilbert, Peng Du
  • Patent number: 9780378
    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 ?mol to 40 ?mol per g of a weight of the negative electrode material layer.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 3, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Dai Yamamoto, Yuki Watanabe, Hidesato Saruwatari, Kazuya Kuriyama, Hideki Satake
  • Patent number: 9742033
    Abstract: A non-aqueous electrolytic solution comprising a non-aqueous solvent and an electrolyte, which further contains a combination of a nitrile compound and an S?O group-containing compound (or a dinitrile compound) in an amount of 0.001 to 10 wt. % imparts improved cycle performance and storage property to a lithium battery, particularly a lithium secondary battery.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 22, 2017
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Koji Abe, Takashi Hattori, Yasuo Matsumori
  • Patent number: 9716288
    Abstract: A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm2.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: July 25, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Se-Ho Park
  • Patent number: 9705158
    Abstract: The present invention relates to a rechargeable battery comprising a non-aqueous electrolytic solution using an alkyl methanesulfonate as a solvent for dissolving the electrolytic salt, and can improve the life characteristics of the battery at high temperature and the high-temperature performance.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: July 11, 2017
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Yang Kook Sun, Seung Min Oh
  • Patent number: 9666900
    Abstract: A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm2.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 30, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Se-Ho Park
  • Patent number: 9666918
    Abstract: A battery employing lithium-oxygen chemistry may include an anode comprising lithium, an electrolyte, and a porous cathode. The electrolyte may include a lithium-containing salt; a partially fluorinated ether, such as 2,2-bis(trifluoromethyl)-1,3-dioxolane; and a co-solvent selected from the group consisting of ethers, amides, nitriles, and combinations thereof. In some examples, the electrolyte does not include a cyclic carbonate ester, a sulfolane, or a sulfolane derivative. The porous cathode allows oxygen to come into contact with the electrolyte.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 30, 2017
    Assignees: International Business Machines Corporation, Central Glass Co., Ltd.
    Inventors: Seok J. Kang, Bryan D. McCloskey, Takashi Mori, Satoru Narizuka, Gregory M. Wallraff
  • Patent number: 9601807
    Abstract: An electrolyte solution for a lithium-ion battery and a lithium-ion battery using the electrolyte solution are provided. The electrolyte solution includes organic solvents, an electrolyte lithium salt, and additives. The additives include succinonitrile, fluorobenzene, and lithium tetrafluoroborate. The percentage by mass of the fluorobenzene in the electrolyte solution is 0.1%-15%. The percentage by mass of the succinonitrile in the electrolyte solution is 0.1%-10%. The percentage by mass of the lithium tetrafluoroborate in the electrolyte solution is 0.01%-1%. The electrolyte solution may increase the charging voltage upper limit and improve the high-temperature intermittent cyclability of the lithium-ion battery. At the same time, the electrolyte may lower the battery swelling rate, reduce the internal resistance, and improve the stability and safety of the lithium-ion battery.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: March 21, 2017
    Assignees: DONGGUAN AMPEREX TECHNOLOGY LIMITED, NINGDE AMPEREX TECHNOLOGY LIMITIED
    Inventor: Bing Long
  • Patent number: 9590275
    Abstract: An electrolyte for a lithium battery and a lithium battery including the electrolyte. The electrolyte is employed in the lithium battery so as to improve cycle characteristics of the lithium battery that is operable at high voltages.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: March 7, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seungtae Lee, Myunghoon Kim, Taehyun Bae, Aeran Kim, Woocheol Shin, Soojin Kim
  • Patent number: 9559395
    Abstract: In accordance with one embodiment, an electrochemical cell includes a negative electrode including a form of lithium, a positive electrode spaced apart from the negative electrode and including an electron conducting matrix and a lithium insertion material which exhibits a volume change when lithium is inserted, a separator positioned between the negative electrode and the positive electrode; and an electrolyte including a salt, wherein Li2O2 or Li2O is formed as a discharge product.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: January 31, 2017
    Assignee: Robert Bosch GmbH
    Inventors: John F. Christensen, Paul Albertus, Boris Kozinsky
  • Patent number: 9520611
    Abstract: A redox flow battery including a cathode cell having a cathode and a catholyte solution; an anode cell having an anode and an anolyte solution; and an ion exchange membrane disposed between the cathode cell and the anode cell, wherein the catholyte solution and the anolyte solution each include an electrolyte, wherein the electrolyte includes a plurality of metal-ligand coordination compounds, wherein at least one of the metal-ligand coordination compounds includes two or more different ligands, and wherein a dipole moment of the metal-ligand coordination compound is greater than 0.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 13, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joung-won Park, Duk-jin Oh, Doo-yeon Lee, Myung-jin Lee
  • Patent number: 9515351
    Abstract: Disclosed is a secondary battery including an electrolyte and/or an electrode, the electrolyte including an electrolyte salt and an electrolyte solvent, i) a cyclic carbonate compound substituted with at least one halogen element; and ii) a compound containing a vinyl group in a molecule thereof, and the electrode including a solid electrolyte interface (SEI) layer partially or totally formed on the surface thereof by electrical reduction of the two compounds.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: December 6, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Hochun Lee, Jeong-Ju Cho, Sujin Yoon
  • Patent number: 9515319
    Abstract: According to one embodiment, a battery active material is provided. The battery active material includes monoclinic complex oxide represented by the formula LixTi1-yM1yNb2-zM2zO7+? (0?x?5, 0?y?1, 0?z?2, ?0.3???0.3). In the above formula, M1 is at least one element selected from the group consisting of Zr, Si and Sn, and M2 is at least one element selected from the group consisting of V, Ta and Bi.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 6, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro Harada, Norio Takami, Hiroki Inagaki, Yorikazu Yoshida
  • Patent number: 9490501
    Abstract: An electrolytic solution for a fluoride ion battery includes: a fluoride salt; and an alcohol material that has one OH group, and in which a molar ratio of the alcohol material is more than 1 with respect to fluoride ions of the fluoride salt.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: November 8, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Hirofumi Nakamoto, Zempachi Ogumi, Jun-ichi Yamaki
  • Patent number: 9461335
    Abstract: There is provided a secondary battery comprising: a positive electrode capable of intercalating and deintercalating a lithium ion; a negative electrode capable of intercalating and deintercalating a lithium ion; and an electrolytic solution, wherein the electrolytic solution comprises: a fluorine-containing cyclic ether compound represented by the following formula (1); and at least one selected from a fluorine-containing chain ether compound or a fluorine-containing phosphate ester compound; wherein R1 to R6 are each independently selected from a hydrogen atom, a fluorine atom, a chlorine atom, or a fluorine-substituted, chlorine-substituted, or unsubstituted alkyl group, and at least one of R1 to R6 is selected from a fluorine atom or a fluorine-substituted alkyl group.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: October 4, 2016
    Assignee: NEC Corporation
    Inventors: Takehiro Noguchi, Hideaki Sasaki, Yuukou Katou, Makiko Takahashi
  • Patent number: 9425484
    Abstract: The invention provides a non-aqueous electrolyte solution containing a phosphonosulfonic acid compound represented by formula (I): wherein, in formula (I), R1, R2 and R3 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a haloalkyl group having 1 to 6 carbon atoms, a phenyl group, a benzyl group, or a group represented by formula (II); R4 and R5 each independently represent a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms; and n represents an integer from 1 to 6; and wherein, in formula (II), R6, R7 and R8 each independently represent an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a benzyl group; m represents an integer from 0 to 2; and * represents a position of bonding with the oxygen atom in formula (I).
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: August 23, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shigeru Mio, Mitsuo Nakamura, Hidenobu Nogi, Satoko Fujiyama, Hidetoshi Tsunoda
  • Patent number: 9300009
    Abstract: The invention is directed in a first aspect to an ionic liquid of the general formula Y+Z?, wherein Y+ is a positively-charged component of the ionic liquid and Z? is a negatively-charged component of the ionic liquid, wherein Z? is a boron-containing anion of the following formula: The invention is also directed to electrolyte compositions in which the boron-containing ionic liquid Y+Z? is incorporated into a lithium ion battery electrolyte, with or without admixture with another ionic liquid Y+X? and/or non-ionic solvent and/or non-ionic solvent additive.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 29, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Xiao-Guang Sun, Sheng Dai, Chen Liao
  • Patent number: 9276246
    Abstract: An electrochemical cell may have a PVDF microporous membrane that may be adhesively bonded to electrodes. The adhesive may be a mixture of a solvent and non-solvent that may cause the PVDF membrane to become tacky and adhere to an electrode without collapsing. An adhesively bonded cell may be constructed using multiple layers of adhesively bonded membranes and electrodes. In some embodiments, the adhesive solution may be used as a sizing to prepare electrodes for bonding.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kirby W. Beard
  • Patent number: 9269951
    Abstract: Provided is a non-aqueous electrolyte-based, high-power lithium secondary battery having a long service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging. The battery comprises a mixture of a lithium/manganese spinel oxide having a substitution of a manganese (Mn) site with a certain metal ion and a lithium/nickel/cobalt/manganese composite oxide, as a cathode active material.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: February 23, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Ji Heon Ryu, Min Su Kim, Jung Eun Hyun, Jaepil Lee, Eun Ju Lee, Youngjoon Shin
  • Patent number: 9214701
    Abstract: Provided is a technique of achieving a longer-life lithium ion secondary battery. The lithium ion secondary battery includes a cathode including a cathode active material containing Mn, an anode including an anode active material containing graphite and non-aqueous electrolytic solution including electrolyte, and LiBF4 and LiPF6 are allowed to coexist in the non-aqueous electrolytic solution. Especially preferably LiPF6 is contained more than LiBF4 in the electrolytic solution. Preferably the electrolytic solution further includes iodide salt. As a result, an oxide of phosphor and boron is deposited on the cathode, thus preventing elution of Mn included in the cathode. The amount of these electrolytes is preferably in the decreasing order of phosphor, boron and then iodine.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: December 15, 2015
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Katsunori Nishimura, Yoshiaki Kumashiro, Kazushige Kohno, Toshiyuki Kobayashi
  • Patent number: 9203113
    Abstract: An object of the present invention is to provide a nonaqueous electrolytic solution capable of improving low-temperature load characteristics after high temperature charging storage, an electrochemical element using it, and a 1,2-dioxypropane compound used for it. The nonaqueous electrolytic solution of the present invention comprises an electrolyte salt dissolved in a nonaqueous solvent, and contains a 1,2-dioxypropane compound represented by the above-mentioned general formula (I). (wherein R1 and R2 each represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; X1 represents a group selected from —S(?O)—, —S(?O)2—, —C(?O)—, —CR3R4—, —P(?O)(OR5)— and —SiR6R7—; R3 and R4 each represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; R5 to R7 each represent an alkyl group having from 1 to 6 carbon atoms.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: December 1, 2015
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Kazuhiro Miyoshi, Yuichi Kotou, Shoji Shikita
  • Patent number: 9196921
    Abstract: A method of producing a lithium ion secondary battery includes: selecting a positive electrode active material that has a prescribed specific surface area, and preparing a nonaqueous electrolyte solution that contains a compound with a following formula (1) at a prescribed concentration. In an xy-coordinate plane that gives a relationship between a specific surface area x [m2/g] of the positive electrode active material and a concentration y [mol/kg] of the compound in the nonaqueous electrolyte solution, a combination of the prescribed specific surface area and the prescribed concentration corresponds to a combination of values that lies within a hexagonal inner region formed by connecting 6 points (x, y)=(0.80, 0.035), (2.20, 0.05), (2.60, 0.10), (2.60, 0.16), (0.80, 0.16), and (0.50, 0.10) in this sequence with straight lines.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: November 24, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taira Saito, Shinji Suzuki
  • Patent number: 9178250
    Abstract: Use of an electrolyte for an electrochemical cell and a method for manufacturing an electrochemical cell comprising such an electrolyte. The electrolyte comprises at least one conductive salt comprising lithium ions, at least one solvent and at least one wetting agent. The electrochemical cell comprises at least one anode, at least one cathode and at least one separator arranged between the at least one anode and the at least one cathode. The electrolyte may be filled between the at least one anode and the at least one cathode.
    Type: Grant
    Filed: November 24, 2013
    Date of Patent: November 3, 2015
    Assignee: Leclanche' SA
    Inventors: Pierre Blanc, Hilmi Buqa, Karl Heinz Pettinger