Separator, Retainer Or Spacer Insulating Structure (other Than A Single Porous Flat Sheet, Or Either An Impregnated Or Coated Sheet Not Having Distinct Layers) Patents (Class 429/129)
  • Patent number: 11522225
    Abstract: A horizontal composite electricity supply element group comprises a first insulation layer, a second insulation layer, a first patterned conductive layer, a second patterned conductive layer, and a plurality of electricity supply element groups. The first patterned conductive layer is disposed on the first insulation layer. The second patterned conductive layer is disposed on the second insulation layer. The plurality of electricity supply element groups are disposed between the first insulation layer and the second insulation layer, and connected in series and/or in parallel via the first patterned conductive layer and the second patterned conductive layer. The electricity supply element group is formed by several serially connected independent electricity supply elements whose electrolyte systems do not circulate with one another. Thereby, the high voltage produced by connection will not influence any single electricity supply element nor decompose their respective electrolyte systems.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 6, 2022
    Assignees: PROLOGIUM TECHNOLOGY CO., LTD., PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 11502337
    Abstract: A cylindrical secondary battery includes a bottomed cylindrical battery case having an opening, an electrode group, an electrolyte solution, and a sealing member blocking the opening of the battery case. The electrode group includes a positive electrode, a negative electrode, and a separator. The negative electrode includes a negative electrode current collector and a negative electrode mix layer placed on at least one principal surface of the negative electrode current collector. The negative electrode mix layer includes a non-facing region not facing the positive electrode mix layer. The density of the negative electrode mix layer is 1.25 g/cm3 to 1.43 g/cm3, the ratio of the entire length of the non-facing region to the entire length of the negative electrode mix layer is 0.09 or more, and the inside diameter of a hollow section of the electrode group is 2.0 mm or less.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: November 15, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Seiichi Aoki
  • Patent number: 11450925
    Abstract: Disclosed is a method of manufacturing an electrode-separator composite: including (S1) coating an electrode active material slurry on at least one surface of an electrode current collector and drying to form an electrode, (S2) coating a polymer solution containing polymer particles on at least one surface of the electrode to form a separator coating layer, and (S3) drying the separator coating layer to form a porous separator, and an electrode-separator composite manufactured by the manufacturing method and a lithium secondary battery comprising the same.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: September 20, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyung-Kyun Yu, Sun-Mi Jin, Joo-Sung Lee, Bo-Kyung Ryu
  • Patent number: 11431032
    Abstract: Provided is a method for manufacturing a mono cell having a sheet-like negative electrode, a sheet-like separator and a sheet-like positive electrode laminated in this order. In this manufacturing method, adhesives are disposed at a plurality of points on an upper surface of the negative electrode, then, the negative electrode is bonded to a lower surface of the separator, and furthermore, adhesives are disposed at a plurality of points on a lower surface of the positive electrode, then the positive electrode is bonded to an upper surface of the separator. When viewed in the lamination direction of the mono cell, the positions of the adhesives and the positions of the adhesives do not overlap each other. Then, adhesives are disposed at a plurality of points on an upper surface of the positive electrode, and a lower surface of a separator is bonded to the upper surface of the positive electrode.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: August 30, 2022
    Assignee: Envision AESC Japan Ltd.
    Inventors: Takeshi Yamashita, Kenichi Shirai
  • Patent number: 11424434
    Abstract: A production method for a separator-including electrode plate includes a step of forming an undried active material layer on a current collector foil, a step of forming an undried separator layer on the undried active material layer by applying a polymer solution containing a water-soluble polymer, water and a high-boiling point solvent, and a step of forming the porous separator layer by vaporizing the high-boiling point solvent after depositing the water-soluble polymer in the shape of a three-dimensional network by vaporizing the water contained in the undried separator layer, and forming the active material layer by vaporizing the dispersion medium contained in the undried active material layer.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: August 23, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu Hirano, Akio Minakuchi, Kohei Matsunobu
  • Patent number: 11417912
    Abstract: A secondary battery that includes a partial electrode assembly having a planar stacking structure in which a plurality of electrode constituting layers are stacked, the plurality of electrode constituting layers each include a pair of electrodes and a separator therebetween, and at least one of the pair of electrodes includes a double-sided electrode having an electrode material layer on opposed main surfaces of a current collector; and an outermost layer electrode surrounding the partial electrode assembly along at least a portion of a contour of the partial electrode assembly in a cross-sectional view thereof, the outermost layer electrode including a single-sided electrode having an outermost electrode material layer on one main surface of an outermost current collector.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: August 16, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hidetaka Shibata
  • Patent number: 11394084
    Abstract: A separator and an electrochemical device including the same. The separator includes: a porous substrate having a plurality of pores; and a first porous coating layer and a second porous coating layer formed on one surface and the other surface of the porous substrate, respectively, and including a plurality of inorganic particles, a binder polymer disposed on a part or the whole of the surface of the inorganic particles so that the inorganic particles are connected and fixed with each other, and an anionic surfactant, wherein the inorganic particles include boehmite particles and non-boehmite particles, and the boehmite particles and the binder polymer are present at a weight ratio of 1:1-1:5.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 19, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Kwan-Woo Nam, Min-Ji Gu
  • Patent number: 11342547
    Abstract: The present disclosure relates to the technical field of energy storage, and in particular, relates to a positive electrode, a method for preparing the positive electrode and an electrochemical device. The positive electrode includes a current collector and a positive electrode active material layer that contains positive electrode active material and is arranged on at least one surface of the current collector. An inorganic layer having a thickness of 20 nm to 2000 nm is arranged on the surface of the at least one positive electrode active material layer away from the current collector. The inorganic layer is a porous dielectric layer containing no binder, and the inorganic layer has a porosity of 10%˜60%. The positive electrode active material layer according to the present disclosure significantly improves the cycle performance, high-temperature storage performance and safety of the electrochemical device.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 24, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Shiwen Wang, Qisen Huang, Huafeng Huang, Chengdu Liang
  • Patent number: 11316206
    Abstract: An energy storage device comprises two electrodes; and a separator disposed between the electrodes; wherein at least one of the electrodes and the separator comprises a copolymer, which serves as a non-aqueous binder and/or solid electrolyte for the electrodes and the separator of the energy storage device, and the copolymer is a copolymerized product or its derivative formed by the polymerization reaction of acrylonitrile and vinyl acetate. Therefore, the charge and discharge properties of the energy storage device using the copolymer can be improved, thereby effectively extending the efficiency and lifetime of the energy storage device.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: April 26, 2022
    Assignee: POLYBATT MATERIALS CO., LTD.
    Inventors: Ping-Lin Kuo, Chih-Hao Tsao, Chia-Wei Chin
  • Patent number: 11289768
    Abstract: Disclosed are a lithium secondary battery including: a positive electrode; a negative electrode; an electrolyte; and a separator including a separator substrate and a ceramic layer formed on one surface or both surfaces of the separator substrate. Particularly, the ceramic layer may include a first ceramic particle including an epoxide group and a second ceramic particle including an amine group, and the first ceramic particle may be chemically bonded to the second ceramic particle.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: March 29, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dongjun Kim, Yeolmae Yeo, Yoon Sung Lee, Jieun Lee, Sang Mok Park, Seung-Min Oh
  • Patent number: 11245135
    Abstract: Disclosed is a secondary battery, comprising an electrode component, a case, a top cover component and a first insulating tape. The electrode component includes a first electrode unit. The first electrode unit is wound into a flat structure and has a first termination line formed at a winding tail-end; a negative plate of an outermost circle of the first electrode unit is located outside a positive plate of an outermost circle; and the first insulating tape at least covers a portion of the first termination line. A surface of the first electrode unit includes a first flat surface; the first flat surface is located at one end of the first electrode unit that is close to the first side wall in the thickness direction; and the first insulating tape is at least partially in close contact with the first flat surface.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: February 8, 2022
    Assignee: Qinghai Contemporary Amperex Technology Limited
    Inventors: Zhiling Li, Baiqing Li, Hui Li, Tingting Zhang, Jun Liu, Xiaoxi Zhang
  • Patent number: 11239532
    Abstract: Battery separators and methods are disclosed. The battery separator may be used in a lithium battery. The separator may include a microporous membrane laminated to a coated nonwoven. The coating may contain a polymer and optionally, a filler or particles. The methods may include the steps of: unwinding the microporous membrane and the nonwoven, laminating the nonwoven and microporous membrane, and coating the nonwoven before or after lamination.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 1, 2022
    Assignee: Celgard, LLC
    Inventors: Lie Shi, Christopher L. Cowger, Heba K. Botros
  • Patent number: 11225417
    Abstract: The present invention relates to a method of preparing a lithium difluorophosphate crystal. More particularly, the present invention relates to a method of preparing a high-purity lithium difluorophosphate crystal at a high yield, and the high-purity lithium difluorophosphate crystal prepared by the method can be used for various purposes.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 18, 2022
    Assignee: Chun Bo., Ltd
    Inventors: Sang Yul Lee, Kyoung Cheol Kim, Kyoung Hwan Kim, Ji Ung Jeon, Su Cheol Park
  • Patent number: 11196040
    Abstract: Disclosed is a negative electrode material including: a lithium silicate phase that contains a lithium silicate; and silicon particles that are dispersed in the lithium silicate phase, wherein the silicon particles have a crystallite size of 10 nm or more, and the lithium silicate has a composition represented by the following formula: Li2Si2O5.(x?2)SiO2, where 2<x?18 is satisfied.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 7, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
  • Patent number: 11189860
    Abstract: The method of manufacturing a secondary battery includes a layering step of forming an electrode body in which positive electrode plates and negative electrode plates are alternately layered with separators interposed in between, the layering step includes, a step of preparing a negative electrode sheet having negative electrode active material layers formed on two surfaces of a negative electrode core body, a step of forming a layered sheet by adhering a first separator and a second separator on two surfaces of the negative electrode sheet with adhesion layers in between, the layered sheet including the first separator, the negative electrode sheet, and the second separator, a step of forming a layered body by cutting the layered sheet, the layered body having two surfaces of the negative electrode plates sandwiched between the first and second separators, and a step of forming the electrode body using the layered body.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: November 30, 2021
    Assignees: SANYO Electric Co., Ltd., PANASONIC CORPORATION
    Inventors: Ryota Aritomo, Yoshitaka Shinyashiki
  • Patent number: 11189884
    Abstract: The present application discloses a cell and a battery, the cell comprising a first electrode, a second electrode, and a first separator and a second separator that are disposed between the first electrode and second electrode, wherein the first separator includes a first meshing structure beyond the first electrode and the second electrode, the second separator includes a second meshing structure beyond the first electrode and the second electrode, and the first meshing structure is meshed with the second meshing structure along a thickness direction of the cell. The cell provided by the present application can improve the dropping performance of the cell and enhance the safe use of cell.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: November 30, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Peipei Guo, Ping He, Yejun Peng, Wenqiang Cheng
  • Patent number: 11177536
    Abstract: Disclosed is a separator which includes a porous polymer substrate including a polymer showing a variation in phase angle represented by the following Formula 1 at 0.1 Hz depending on an increase in temperature. An electrochemical device including the separator is also disclosed. Variation in phase angle at 0.1 Hz=[(Phase angle190?Phase angle280)/(Phase angle190)]×100?0%,??[Formula 1] wherein Phase angle190 means the phase angle of the porous polymer substrate at 0.1 Hz and 190° C., and Phase angle280 means the phase angle of the porous polymer substrate at 0.1 Hz and 280° C.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: November 16, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Sung Jang, Yeon-Soo Kim, Dong-Wook Sung, Hyun-Sup Lee, So-Mi Jeong
  • Patent number: 11170944
    Abstract: An ultracapacitor that contains at least one electrochemical cell is provided. The cell includes a first electrode that contains a first carbonaceous coating (e.g., activated carbon particles) electrically coupled to a first current collector, a second electrode that contains a second carbonaceous coating (e.g., activated carbon particles) electrically coupled to a second current collector, an aqueous electrolyte in ionic contact with the first electrode and the second electrode and that contains a polyprotic acid (e.g., sulfuric acid), and a separator that is positioned between the first and second electrodes. Through selective control over the particular nature of the materials used to form the ultracapacitor, as well as the manner in which they are formed, a variety of beneficial properties may be achieved.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 9, 2021
    Assignee: KYOCERA AVX Components Corporation
    Inventors: Jonathan Robert Knopsnyder, Shawn Hansen
  • Patent number: 11165068
    Abstract: Disclosed herein is an electrolytic membrane with cationic ion or anionic ion conducting capability comprising crosslinked inorganic-organic hybrid electrolyte in a porous support, wherein the inorganic-organic hybrid crosslinked electrolyte is formed by chemical born formation between Linkers and Crosslinkers, wherein Linkers and/or Crosslinkers include at least one element from Si, P, N, Ti, Zr, Al, B, Ge, Mg, Sn, W, Zn, V, Nb, Pb or S.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: November 2, 2021
    Inventor: Ryo Tamaki
  • Patent number: 11108116
    Abstract: The discharge performance of a primary, bobbin-style electrochemical cell is improved by incorporating a separator formed from a continuous separator sheet defining a two-layer cylindrical sidewall and a closed bottom end between the included electrochemical cell cathode and anode. A first layer of the cylindrical separator is formed by rolling a first end of a continuous separator sheet into a cylinder having a central axis parallel with a longitudinal axis of the continuous separator sheet, and then rolling a second end of the continuous separator sheet around the exterior of the first cylindrical layer to form a second cylindrical layer. The closed bottom end is formed by a portion of the continuous separator sheet located between the rolled portion of the first end and the rolled portion of the second end.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 31, 2021
    Assignee: Energizer Brands, LLC
    Inventors: David Walter Kalisz, Maria G. Verikakis, Christopher S. Bolyos
  • Patent number: 11095000
    Abstract: A slurry for a lithium ion secondary battery porous membrane, including non-conductive particles, a water-soluble polymer containing an acidic group-containing monomer unit, and a particulate polymer, wherein: an amount of the water-soluble polymer is 0.05 parts by weight to 2 parts by weight relative to 100 parts by weight of the non-conductive particles; and a BET specific surface area of the non-conductive particles is 5 m2/g to 10 m2/g.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: August 17, 2021
    Assignee: ZEON CORPORATION
    Inventor: Junnosuke Akiike
  • Patent number: 11088366
    Abstract: The present invention provides a positive electrode active material for lithium secondary batteries including: secondary particles obtained by aggregating primary particles capable of being doped and de-doped with lithium ions, in which the secondary particles have pores, and pore distribution obtained by a mercury intrusion method satisfies requirements (1) and (2) below: (1) pores that are present in any one or both of the secondary particles or spaces between the secondary particles have a pore peak within a range of a pore radius of equal to or greater than 10 nm and equal to or less than 200 nm; and (2) a total surface area of pores that have pore radii of equal to or greater than 100 nm and equal to or less than 10 ?m among the pores that are present in any one or both of the secondary particles or spaces between the secondary particles is less than 1.1 m2/g.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 10, 2021
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATION
    Inventors: Jun-ichi Kageura, Hiroyuki Kurita, Kimiyasu Nakao, Ryota Kobayashi
  • Patent number: 11081749
    Abstract: The present application relates to the field of batteries, and discloses a battery and a manufacturing method for the same. The battery comprises a package bag, an electrode, and a circuit board assembly. The electrode is located in the package bag, and the electrode is further provided with a terminal. The terminal has one end connected to the electrode and located inside the package bag, and the other end located outside the package bag. The other end of the terminal is electrically connected to the circuit board assembly to form a protection portion, and the protection portion is covered by a protection layer. In the foregoing embodiment, the protection layer can cover structures requiring insulation protection, such as the circuit board assembly and the terminal, and the protection layer can be tightly adhered to the surfaces of the structures, thereby improving the reliability.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: August 3, 2021
    Assignee: DONGGUAN NVT TECHNOLOGY CO., LTD.
    Inventors: Liming Wang, Chenghong Gan, Baiqing Zhang, Guanghui Chen, Wei Tang
  • Patent number: 11063319
    Abstract: Provided is a separator for an electrochemical element having exceptional strength and shielding performance, a small thickness, and low resistance. A separator for an electrochemical element interposed between a pair of electrodes and capable of holding an electrolytic solution containing an electrolyte, wherein the separator for an electrochemical element comprises a regenerated cellulose fiber having an average fiber length of 0.25-0.80 mm and an average fiber width of 3-35 ?m, and in which the value calculated by dividing the average fiber length by the average fiber width is 15-70.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: July 13, 2021
    Assignee: NIPPON KODOSHI CORPORATION
    Inventors: Atsushi Igawa, Takumi Ichimura, Gaku Matsuoka, Norihiro Wada
  • Patent number: 11050052
    Abstract: The present invention provides a lithium ion battery and a negative electrode material thereof. The negative electrode material includes a mixture of a graphite and an amorphous carbon, wherein the graphite is subjected to a surface treatment, and the surface treatment manner is a combination of mechanical fusion modification and spray drying coating, and wherein the graphite has a graphitization degree of 90-96%, an average particle diameter D50 of 13-25 ?m and a specific surface area BET of 0.8-2.5 m2/g, and the amorphous carbon has a graphitization degree of 65-80%, an average particle diameter D50 of 2-15 ?m and a specific surface area BET of 1.0-3.0 m2/g.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 29, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Wenzhu Xu, Jianqing Sun, Guangbo Lu, Fan Sun, Qifan Zou, Shengwei Wang
  • Patent number: 11043700
    Abstract: Aspects of the present disclosure are directed toward a new and improved non-aqueous electrolyte rechargeable battery that is capable of suppressing or reducing non-uniformity of pressure during the manufacturing process, and thus suppressing or reducing a thickness increase during cycling, as well as a manufacturing method thereof. The present disclosure provides a non-aqueous electrolyte rechargeable battery including: an stacked electrode assembly in which electrodes and a separator are sequentially stacked; current collecting tabs attached to portions of some surfaces of the electrodes; and filling members positioned in vicinities of the current collecting tabs along the surface directions.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 22, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Atsushi Nishimoto, Yasuo Takano
  • Patent number: 10971782
    Abstract: The method of the present disclosure includes: preparing a solution containing a water-soluble polymer dissolved in a mixed solvent containing water admixed with a first solvent having a higher boiling point than that of the water; applying the solution in a film form to a surface of an electrode to form a coating made of the solution on the surface of the electrode; and removing the mixed solvent from the coating by vaporization such that a porous separator layer made of the water-soluble polymer is formed on the surface of the electrode while a plurality of pores are formed in an inside of the coating due to removal of the first solvent. The solubility of the water-soluble polymer in the first solvent is lower than that of the water-soluble polymer in the water.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akio Minakuchi, Tomoyuki Uezono, Kohei Matsunobu
  • Patent number: 10916782
    Abstract: The present invention provides a solid-liquid electrolyte in the form of a gel which comprises an organic carbonate-based solvent, precipitated silica, at least one ionically conducting salt and optionally additives. The invention also relates to batteries containing said solid-liquid electrolyte. The solid-liquid electrolyte according to the present invention can improve the electrochemical properties of batteries and prevent electrolyte leakage thus reducing the risk of corrosion of the batteries.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: February 9, 2021
    Inventors: Thierry Le Mercier, Marc-David Braida, Robin Amisse, Jules Valente
  • Patent number: 10897043
    Abstract: A secondary battery includes a first electrode; a first active material fluid which is electrically connected to the first electrode, contains a first active material and a supporting salt, and is flowable; and a second electrode including a structure which is formed by containing a second active material, the structure either being immersed in the first active material fluid or holding the first active material fluid, and a separating membrane disposed between the first active material fluid and the structure, the separating membrane having ion conducting properties and insulating properties.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: January 19, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Chikaaki Okuda, Hiroki Kondo, Tsuyoshi Sasaki
  • Patent number: 10886527
    Abstract: Provided with a negative electrode for a secondary battery comprising an anode active material that is a mixture of an amorphous carbon-coated graphite active material A having a density of 1.50 g/cm3 or less in press pelletizing at 2 kN/cm2 and a carbon-based active material B having a density of 1.65 g/cm3 or higher in press pelletizing at 2 kN/cm2 in a weight ratio of 90:10 to 99:1 as A:B, so that the cracking of amorphous carbon-coated graphite is suppressed and high-temperature life characteristics is improved.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 5, 2021
    Assignee: Envision AESC Energy Devices Ltd.
    Inventor: Hiroo Takahashi
  • Patent number: 10875964
    Abstract: A polymer compound to be used as a binder for a negative electrode of a power storage device is provided. The polymer compound is formed by condensation of a polyacrylic acid and a polyfunctional amine represented by the following general formula (1), where X is a ring structure having 1 to 3 benzene rings; and C1 to C4 are each a carbon atom constituting a benzene ring in the ring structure.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: December 29, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Sugiyama, Takeshi Kondo, Nobuhiro Goda
  • Patent number: 10854864
    Abstract: Provided are a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator for a lithium secondary battery includes: a porous substrate; and a coating layer disposed on one side or both sides of the porous substrate and including a first inorganic particle and a second inorganic particle having different lengths of a major axis, and a binder, wherein a moisture content is less than 800 ppm after being left for 12 hours at a temperature of 40° C. and relative humidity of 90%.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: December 1, 2020
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Yun Bong Kim, Won Sub Kwack, Hye Jin Kim, Su Ji Lee, Kyu Young Cho
  • Patent number: 10833304
    Abstract: The disclosure relates to a one-way valve, a top cover component, a box and a battery module. The one-way valve includes: a valve body including an inlet end, an exhaust end and an air-flow passage, the air-flow passage including a first flow-passing hole, a second flow-passing hole and a protrusion disposed on a bottom wall of the first flow-passing hole, the second flow-passing hole penetrating through the protrusion; an elastic valve cap, the protrusion being sheathed with and in a sealed connection with the elastic valve cap, a flow-passing gap is formed between an outer surface of the elastic valve cap and a hole wall of the first flow-passing hole, the second flow-passing hole includes a conical hole-section; a valve cover in connection with the exhaust end, wherein the valve cover is disposed within the first flow-passing hole and includes an exhaust passage in connection with the first flow-passing hole.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 10, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhiyi You, Xiaofan Wang, Feng Qin, Lin Ma, Zhi Wang, Xinfu Xiao
  • Patent number: 10804520
    Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: October 13, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ji Won Park, Myung Hoon Ko, Seung Ho Na, Chang Bum Ahn
  • Patent number: 10784536
    Abstract: A method including a step of preparing a positive electrode including a positive electrode mixture layer, a negative electrode including a negative electrode mixture layer, and a nonaqueous electrolyte; and a step of accommodating the positive electrode, the negative electrode, and the nonaqueous electrolyte in a battery case. The nonaqueous electrolyte contains a compound (I) represented by the following formula (I) LiO3S—R—SO3Li (wherein R represents a linear hydrocarbon group having 1 to 10 carbon atoms). When a BET specific surface area of the negative electrode mixture layer is represented by X (m2/g) and when an amount of the compound (I) with respect to the total amount of the nonaqueous electrolyte is represented by Y (mass %), the following relationships 3?X?4.3, 0.2?Y?0.4, and (Y/X)?0.093 are satisfied.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 22, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Yamasaki, Tatsuya Hashimoto
  • Patent number: 10784508
    Abstract: The present disclosure provides a preparation method of a modified positive electrode active material preparation method, which comprising steps of: dispersing a positive electrode active material matrix into an alcohol solvent to form a positive electrode active material matrix suspension; dissolving an alcohol-soluble aluminum salt in an alcohol solvent to form an alcohol-soluble aluminum salt solution; dissolving an alcohol-soluble phosphorous compound in an alcohol solvent to form an alcohol-soluble phosphorous compound solution; mixing the alcohol-soluble aluminum salt solution and the alcohol-soluble phosphorous compound solution and heating to react, obtaining a liquid-phase coating solution which contains aluminum phosphate after the reaction is finished; mixing and stirring the positive electrode active material matrix suspension and the liquid-phase coating solution which contains aluminum phosphate, extraction filtrating and obtaining a filter cake after the stirring is finished, then drying and ba
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: September 22, 2020
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huan Ni, Yujun Chen, Xinliang Kuang, Xuguang Gao, Long Wang, Na Liu
  • Patent number: 10763483
    Abstract: The battery pack disclosed herein includes a plurality of unit cells. The plurality of unit cells is connected to each other by a bus bar. The bus bar has two terminal connection portions and a linking portion. A linear welded portion is formed in a portion where the terminal connection portions and the external terminals overlap with each other. The linear welded portion is non-annular in the plane of the terminal connection portions and has a straight linear portion extending in a direction orthogonal to the arrangement direction, and two circular arc portions that extend from respective ends of the straight linear portion and are curved toward a side opposite to the side where the linking portion is located.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: September 1, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Nagai, Koji Tamaru, Ryo Kagami, Yuki Okamoto
  • Patent number: 10756330
    Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery. A battery, comprising: a first electrode, including a number of porous silicon spheres; a second electrode; and an electrolyte in contact with both the first electrode and the second electrode.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: August 25, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Wei Wang, Cengiz S Ozkan, Mihrimah Ozkan
  • Patent number: 10727481
    Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 28, 2020
    Assignee: CF TRAVERSE LLC
    Inventor: Ronald A. Rojeski
  • Patent number: 10696840
    Abstract: A resin composition for semiconductor encapsulation, containing (A) an epoxy resin, (B) a phenolic resin-based curing agent, (C) an inorganic filler, and (D) amorphous carbon, wherein the amorphous carbon of the component (D) contains 30 atomic % or more of an SP3 structure and 55 atomic % or less of an SP2 structure.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: June 30, 2020
    Assignee: KYOCERA CORPORATION
    Inventors: Ken Uchida, Shinichi Kazama, Yoshitake Terashi
  • Patent number: 10693195
    Abstract: Provided is a rechargeable battery. The rechargeable battery includes an electrode assembly, an electrolyte immersing the electrode assembly therein, a case assembly accommodating the electrode assembly and the electrolyte, and an absorbing member disposed in the electrode assembly to absorb stress applied to the inside of the electrode assembly when the electrode assembly is expanded.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jin Uk Do, Ju Bin Kim, Sang Sok Jung
  • Patent number: 10673047
    Abstract: The present disclosure relates to a cable type secondary battery which includes: a cable type electrode assembly including an inner electrode, a separator layer formed to surround the outer surface of the inner electrode and preventing a short-circuit between electrodes, and an outer electrode formed to surround the separator layer; a taping layer formed by spirally winding a sheet type tape so that it surrounds the outer surface of the cable type electrode assembly; and a packaging formed to surround the outer surface of the taping layer. According to the present disclosure, it is possible to prevent separation of the separator layer or the outer electrode, and thus to reinforce the bending characteristics of the cable type secondary battery.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 2, 2020
    Assignee: KG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Suk-In Noh, Young-Ji Yuk, Dong-Chan Lee
  • Patent number: 10673044
    Abstract: An electrical insulator and its related battery are provided. The electrical insulator includes a separation region and a supporting region. The supporting region covers the edge of at least one of opposite surfaces of the separation region and at least a part of a lateral surface of the separation region. The battery includes the electrical insulator. The electrical insulator is disposed between cathode and anode active material layers of the battery and contacts the active material layers directly. The cathode and the anode active material layers are completely electrically isolated because the electrical insulator totally covers at least one active material layer. Hence, the inner short of the battery is prevented.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: June 2, 2020
    Assignees: PROLOGIUM TECHNOLOGY CO., LTD., PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 10661462
    Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 26, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kiyomu Nomura, Tatsuya Kataoka
  • Patent number: 10658697
    Abstract: A secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode including a carbon material and a silicon-based material; and an electrolyte layer. The electrolyte layer includes an electrolytic solution and a polymeric compound and has one or more through-holes extending in a thickness direction of the electrolyte layer.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 19, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Masayuki Iwama
  • Patent number: 10644323
    Abstract: Provided is a metal mesh foil for a current collector of a lithium secondary battery having a hydrophobic deposition layer formed on a surface thereof, wherein the hydrophobic deposition layer is a deposition layer, in which a hydrophobic material is deposited, and has a thickness of 1 ? to 100 ?.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: May 5, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Su Min Lee, Sun Young Shin, Oh Byong Chae, Eun Kyung Kim
  • Patent number: 10644332
    Abstract: A gas-liquid separator includes a casing in which there are formed an inlet port to which a gas-liquid two-phase flow is supplied, and an outlet port through which a gas flow is discharged after the gas-liquid two-phase flow has been separated into a gas and a liquid. A gas-liquid separation chamber is formed in the casing by a partition wall. The inlet port opens on a surface of the partition wall in the gas-liquid separation chamber. The gas-liquid separator further includes a deflection member configured to change a flow direction of the gas-liquid two-phase flow that flows in from the inlet port, and a clearance is formed between the deflection member and an inner wall of the casing.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 5, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Okamura, Tetsuya Fukuda, Yoichiro Saito
  • Patent number: 10637073
    Abstract: A positive electrode for a metal-air battery, the positive electrode including: a first layer disposed on a surface of an electrolyte membrane or a separator and including a first carbon material, a first electrolyte, and a first binder having an affinity with the first electrolyte; and a second layer disposed on the first layer and including a second carbon material, a second electrolyte, and a second binder having an affinity with the second electrolyte, wherein the first carbon material is different from the second carbon material, the first carbon material has a Brunauer Emmett Teller specific surface area which is greater than a Brunauer Emmett Teller specific surface area of the second carbon material, and wherein an amount of the first binder may be about 1.5 times to about 3 times greater than an amount of the second binder.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jungock Park, Mokwon Kim, Joonhee Kim, Kyounghwan Choi
  • Patent number: 10629958
    Abstract: An objective is to provide a novel aqueous electrolytic solution constituting an aqueous power storage device that stably operates even at a high voltage. An electrolytic solution for a power storage device contains water as a solvent and has a composition in which an amount of the solvent is not greater than 4 mol with respect to 1 mol of an alkali metal salt.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: April 21, 2020
    Assignees: THE UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomoyuki Kawai, Junichi Niwa, Atsuo Yamada, Yuki Yamada, Kenji Usui
  • Patent number: 10615454
    Abstract: An electrolyte and a lithium battery including the electrolyte, a positive electrode, and a negative electrode are provided. The electrolyte includes a lithium difluorophosphate (LiPO2F2), a sultam-based compound, and an organic solvent. The electrolyte may reduce an internal resistance increase rate of a lithium battery, and thus improve high-temperature stability of the lithium battery.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: April 7, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyunbong Choi, Miyoung Son, Harim Lee, Woocheol Shin, Makhmut Khasanov