And Acyclic Carbonate Or Acyclic Carboxylic Acid Ester Solvent Patents (Class 429/332)
  • Patent number: 10483526
    Abstract: According to one embodiment, there is provided a positive electrode active material containing positive electrode active material particles. The positive electrode active material particles have an olivine structure. The positive electrode active material particles are represented by LiMn1?x?yFexMyPO4 (0<x?0.5, 0?y?0.2, and M is at least one element selected from the group consisting of Mg, Ni, Co, Sn, and Nb) and satisfy, Formula (1) below. ?<???(1), wherein ? is a ratio of Fe in LiMn1???yFe?MyPO4, and ? is a ratio of Fe in LiMn1???yFe?MyPO4.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 19, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio Takami, Keigo Hoshina, Hiroki Inagaki
  • Patent number: 10476104
    Abstract: Provided are a gel polymer electrolyte including a polymer network, and an electrolyte solution impregnated in the polymer network, wherein the polymer network is formed by combining a first oligomer, which includes unit A derived from a monomer including at least one copolymerizable acrylate or acrylic acid, unit C including urethane, and unit E including alkylene group substituted with one or more fluorine, in a three-dimensional structure, and a lithium secondary battery including the gel polymer electrolyte.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: November 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Jeong Woo Oh, Chul Haeng Lee, Yi Jin Jung, Sol Ji Park
  • Patent number: 10439226
    Abstract: A nonaqueous electrolyte battery comprising: a positive electrode including a positive electrode active material layer containing a lithium iron manganese phosphate composite having an olivine structure; and a negative electrode including a negative electrode active material layer containing a titanium-containing metal oxide composite, wherein an atomic concentration of manganese is 1 atm % or more and 15 atm % or less in a region from a surface to a depth D of the negative electrode active material layer and the depth D is more than 0 nm and 10 nm or less.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 8, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasunobu Yamashita, Keigo Hoshina, Yoshiyuki Isozaki, Norio Takami
  • Patent number: 10439251
    Abstract: Disclosed herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also disclosed herein are lithium-stuffed garnet thin films having fine grains therein. Also disclosed herein are methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also disclosed herein are methods for preparing dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device. Also disclosed herein are sintering techniques, e.g.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 8, 2019
    Assignee: QuantumScape Corporation
    Inventors: Tim Holme, Niall Donnelly, Sriram Iyer, Adrian Winoto, Mohit Singh, Will Hudson, Dong Hee Anna Choi, Oleh Karpenko, Kian Kerman
  • Patent number: 10424794
    Abstract: To provide a material suitable for a nonaqueous electrolyte battery having high-temperature durability. An ionic complex of the present invention is represented by any of the following formulae (1) to (3). For example, in the formula (1), A is a metal ion, a proton, or an onium ion; M is any of groups 13 to 15 elements. R1 represents a C1 to C10 hydrocarbon group which may have a ring, a heteroatom, or a halogen atom, or —N(R2)—. R2 at this time represents hydrogen atom, alkali metal atom, a C1 to C10 hydrocarbon group which may have a ring, a heteroatom, or a halogen atom. R2 can also have a branched chain or a ring structure when the number of carbon atoms is 3 or more. Y is carbon atom or sulfur atom. a, o, n, p, q, and r are each predetermined integers.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 24, 2019
    Assignee: Central Glass Co., Ltd.
    Inventors: Mikihiro Takahashi, Takayoshi Morinaka, Masutaka Shinmen, Kenta Yamamoto, Wataru Kawabata, Makoto Kubo, Masataka Fujimoto, Hiroki Matsuzaki, Shoichi Tsujioka
  • Patent number: 10418667
    Abstract: The present invention relates to a non-aqueous electrolyte secondary battery (30) which includes: a positive electrode (1); a negative electrode (2); a non-aqueous electrolyte containing a non-aqueous solvent; an outer package (5, 7, 19) receiving the positive electrode (1), the negative electrode (2), and the non-aqueous electrolyte; and a current interrupt valve (14) which interrupts a current in response to an increase in pressure inside the outer package (5, 7, 19). The positive electrode (1) contains a carbonate compound, the non-aqueous solvent contains a fluorinated cyclic carbonate and a fluorinated chain ester, and the total content of the fluorinated cyclic carbonate and the fluorinated chain ester is with respect to the total volume of the non-aqueous solvent, 50 percent by volume or more.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: September 17, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Naoya Morisawa, Takanobu Chiga, Takashi Takeuchi
  • Patent number: 10411299
    Abstract: Electrolytes are described with additives that provide good shelf life with improved cycling stability properties. The electrolytes can provide appropriate high voltage stability for high capacity positive electrode active materials. The core electrolyte generally can comprise from about 1.1M to about 2.5M lithium electrolyte salt and a solvent that consists essentially of fluoroethylene carbonate and/or ethylene carbonate, dimethyl carbonate and optionally no more than about 40 volume percent methyl ethyl carbonate, and wherein the lithium electrolyte salt is selected from the group consisting of LiPF6, LiBF4 and combinations thereof. Desirable stabilizing additives include, for example, dimethyl methylphosphonate, thiophene or thiophene derivatives, and/or LiF with an anion complexing agent.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 10, 2019
    Assignee: Zenlabs Energy, Inc.
    Inventors: Swapnil J. Dalavi, Shabab Amiruddin, Bing Li
  • Patent number: 10294189
    Abstract: The invention provides a method for producing halogenated carbonates, the method comprising reacting a halogenated alcohol or diol with a solid source of carbonyl moiety as a base in an ether.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: May 21, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Trevor L. Dzwiniel, Krzysztof Pupek, Gregory K. Krumdick
  • Patent number: 10170790
    Abstract: A solid-state conductor with sodium oxoferrate structure is disclosed. The conductor may be used in battery applications where it is preferable to avoid the use of a liquid electrolyte. The conductor may be produced from an initial NaFeO2 chemical composition. So as to add defects and allow for sodium ion mobility, Fe(IV), Si, Sn, Ti, Zr, V, P, or S can be added. For example, (1?x)(NaFeO2)+x(XO2) can be melted with the corresponding oxide XO2, where X is Fe(IV), Si, Sn, Ti, Zr, V, P, or S, and x is between 0.1 and 0.5. These dopants generally preserve the crystallographic structure while decreasing the ion mobility barrier.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Teodoro Laino, Valery Weber
  • Patent number: 10153512
    Abstract: An electrolyte solution contains a non-aqueous solvent and an alkali metal salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains a linear carboxylate represented by the following formula: where R1 and R2 independently represent an aromatic group, an unsaturated aliphatic group, or a saturated aliphatic group. A battery includes the electrolyte solution, a positive electrode containing a positive electrode active material that has a property of occluding and releasing an alkali metal ion, and a negative electrode containing an alkali metal or a negative electrode active material that has a property of occluding and releasing the alkali metal ion.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: December 11, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takayuki Nakatsutsumi, Mayumi Maenishi, Nobuhiko Hojo
  • Patent number: 10122046
    Abstract: The present invention provides an electrolyte composition for a lithium-ion battery comprising LiPF6 in a liquid carrier comprising a carbonate ester and an unsaturated organoboron compound comprising two or three unsaturated hydrocarbon groups, each unsaturated hydrocarbon group being covalently bonded to a boron atom. The unsaturated hydrocarbon groups are independently selected from vinyl, allyl, propargyl, substituted vinyl, substituted allyl, and substituted propargyl. The substituents of the substituted vinyl, allyl and propargyl groups independently comprise one or more of alkyl and phenyl. The alkyl and phenyl groups optionally can bear one or more substituent selected from halogen (e.g., F), hydroxy, amino, alkoxy, and perfluoroalkoxy.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: November 6, 2018
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Daniel Abraham, Ye Zhu
  • Patent number: 10122047
    Abstract: A nonaqueous electrolyte secondary battery proposed herein is configured such that a positive-electrode active material layer includes graphite particles and a gas generant. Further, an electrolyte solution includes an ? solute. Here, a relationship between an upper limit electric potential X of a positive electrode in a predetermined normal use area, an electric potential Y at which an amount of the ? solute in the electrolyte solution begins to decrease due to the graphite particles, and an electric potential Z at which the gas generant begins to generate gas is X<Y<Z.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 6, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yutaka Oyama
  • Patent number: 10074874
    Abstract: A lithium ion battery that has a 5 V stabilized manganese cathode and a nonaqueous electrolyte comprising a phosphate additive is described. The lithium ion battery operates with a high voltage cathode (i.e. up to about 5 V) and has improved cycling performance at high temperature.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 11, 2018
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Viacheslav A. Petrov, Mark Gerrit Roelofs
  • Patent number: 10069165
    Abstract: An electrolyte composition for a lithium-ion battery, a lithium-ion battery, and also the use of a fluorine-containing cyclic carbonate component and lithium nitrate for improving the cycle stability and/or for increasing the performance of a lithium-ion battery.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: September 4, 2018
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Janis Doelle, Mirko Herrmann
  • Patent number: 10050310
    Abstract: A non-aqueous electrolytic solution of the present invention includes: a solvent component including a glyme solvent and a phosphazene solvent; and an alkali metal salt composed of an alkali metal cation and an anion, the alkali metal salt being dissolved in the solvent component. The phosphazene solvent is a cyclic phosphazene compound represented by the formula (1). where X1 to X6 each independently represent a halogen atom or OR1, R1 is a substituted or unsubstituted aromatic group or a substituted or unsubstituted saturated aliphatic group, the aromatic group and the saturated aliphatic group each optionally contain a halogen atom, a nitrogen atom, an oxygen atom, a sulfur atom, or a silicon atom, and the saturated aliphatic group is linear or cyclic.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 14, 2018
    Assignee: Panasonic Corporation
    Inventors: Hirotetsu Suzuki, Nobuhiko Hojo, Takayuki Nakatsutsumi
  • Patent number: 9979013
    Abstract: An electrode material includes Fe-containing olivine-structured LixAyDzPO4 (wherein A represents one or more elements selected from the group consisting of Co, Mn, Ni, Cu, and Cr; D represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, Y, and rare earth elements; 0<x?2; 0<y?1; and 0?z?1.5) particles that are coated with a carbon coating film, in which an abundance of Fe is 0.01 to 0.1 mol with respect to 1 mol of LixAyDzPO4, and an abundance ratio (Fe/(Fe+A+D)) of Fe on surfaces of the LixAyDzPO4 particles is 0.02 to 0.25.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: May 22, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kenta Ooishi, Takao Kitagawa, Kouji Oono, Satoru Oshitari
  • Patent number: 9979049
    Abstract: Provided are an electrolyte for a high-voltage lithium secondary battery and a high-voltage lithium secondary battery containing the same, and more particularly, an electrolyte for a high-voltage lithium secondary battery which may not be oxidized and decomposed at the time of being kept at a high voltage and a high temperature to prevent swelling of a battery through suppression of gas generation, thereby having excellent high-temperature storage characteristics and excellent discharge characteristics at a low temperature while decreasing a thickness increase rate of the battery, and a high-voltage lithium secondary battery containing the same.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 22, 2018
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jin Sung Kim, Seung Yon Oh, Jong Ho Lim, Jin Su Ham
  • Patent number: 9979020
    Abstract: According to one embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode includes an active material including Li1?xMn2?y?zAlyMzO4 (?0.1?x?1, 0.20?y?0.35, 0?z?0.1, M is at least one metal selected from Mg, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, and Sn). The negative electrode includes an active material including a first oxide represented by Li4+aTi5O12 (?0.5?a?3) and a second oxide of at least one element selected from Al, Co, Cr, Cu, Fe, Mg, Ni, Zn, and Zr. The second oxide is included in an amount of from 300 ppm to 5000 ppm relative to a weight of the first oxide.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 22, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidesato Saruwatari, Hikaru Yoshikawa, Hiromichi Kuriyama, Yasuaki Murashi, Naoki Nishio, Dai Yamamoto
  • Patent number: 9947923
    Abstract: The nonaqueous electrolyte battery according to one embodiment includes a positive electrode and a negative electrode. The positive electrode contains a positive electrode active material containing manganese-containing composite oxide. The negative electrode contains a negative electrode active material selected from the group consisting of titanium oxide and titanium-containing composite oxide. A ratio p/n of a capacity p per unit area of the positive electrode to a capacity n per unit area of the negative electrode is in the range of 0.8 or more and 1 or less.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 17, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi Kuriyama, Hikaru Yoshikawa, Hidesato Saruwatari, Yasuaki Murashi, Dai Yamamoto, Naoki Nishio
  • Patent number: 9899663
    Abstract: Disclosed is a lithium secondary battery including: an electrode assembly including a cathode including a cathode mixture layer formed on a cathode current collector, an anode including an anode mixture layer formed on an anode current collector, and a separator disposed between the cathode and the anode; and an electrolyte, wherein the anode includes lithium titanium oxide (LTO) as an anode active material, and four planes of the cathode mixture layer have the same or greater length than four planes of the anode mixture layer and thus the cathode mixture layer has the same or greater area than the anode mixture layer.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: February 20, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Soo Hyun Lim, Jae Hyun Lee, Jihyun Kim
  • Patent number: 9887407
    Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 6, 2018
    Assignees: LG Chem, Ltd., TORAY INDUSTRIES, INC.
    Inventors: Sung-Hoon Yu, Jung-Don Suk, Seok-Koo Kim, Doo-Kyung Yang, Yoo-Sun Kang, Kyung-Mi Lee, Jin-Hyun Park
  • Patent number: 9871271
    Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising a pyrimidine-based compound, a non-fluorinated solvent and a fluorinated solvent; and a lithium secondary battery using the same.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: January 16, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Hoon Yu, Doo Kyung Yang, Min-Jung Jou, Yoo-Seok Kim, Yoo-Sun Kang
  • Patent number: 9831523
    Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising fluoroethylene carbonate and a pyrimidine-based compound; and a lithium secondary battery using the same.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: November 28, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Hoon Yu, Doo-Kyung Yang, Min-Jung Jou, Yoo-Seok Kim, Yoo-Sun Kang
  • Patent number: 9825327
    Abstract: A non-aqueous electrolyte includes (i) an inhibitor against a reaction between an anode and a linear ester; (ii) a mixed organic solvent containing cyclic carbonate and the linear ester; and (iii) an electrolyte salt, wherein the inhibitor is any one compound or a mixture of at least two compounds selected from the group consisting of cyclic carbonate with a vinyl group, fluorinated ethylene carbonate, vinylene carbonate, cyclic acid anhydride, a compound having a cyclic S?O group and an acrylate-based compound. Also, an electrochemical device includes a cathode, an anode and the above non-aqueous electrolyte.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: November 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jong-Ho Jeon, Jeong-Ju Cho, Ho-Chun Lee
  • Patent number: 9825293
    Abstract: Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the anode includes a lithium titanium oxide (LTO) as an anode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Soo Hyun Lim, Jae Hyun Lee, Jihyun Kim
  • Patent number: 9780360
    Abstract: Provided is a cathode mixture which can have both ion conductivity and electron conductivity and with which a solid battery having an excellent output characteristic can be obtained. The cathode mixture includes a plurality of cathode active material particles, a fibrous electroconductive material, a particulate electroconductive material, and a solid electrolyte, wherein setting the total number of the plurality of cathode active material particles as 100%, the number of the cathode active material particles in contact with the fibrous electroconductive material via the particulate electroconductive material is 40% or more.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: October 3, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Satoshi Mizutani
  • Patent number: 9761912
    Abstract: A battery, particularly a lithium-metal battery or a lithium-ion battery, having at least one galvanic cell surrounded by a cell housing. To increase the safety of the battery and to close up again a cell opened by a safety device or by a leakage, the inner chamber of the cell housing of the at least one cell includes a first chemical component, a chamber bordering on at least one section of the outer side of the housing including a second chemical component; a solid reaction product being developable by the chemical reaction of the first and second chemical components. The first component is containable in the electrolyte of the cell and the second component in a cooling and/or tempering arrangement. Also described is a cooling and/or tempering arrangement based on it, and an electrolyte, an electrolytic liquid, a safety system, a method and a mobile or stationary system.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: September 12, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Martin Tenzer, Jens Grimminger, Jean Fanous, Marcus Wegner
  • Patent number: 9728805
    Abstract: Disclosed are a nonaqueous electrolyte for a lithium secondary battery containing a hetero polycyclic compound and a lithium secondary battery using the same.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hoon Yu, Doo Kyung Yang, Jong-Ho Jeon, Min-Jung Jou
  • Patent number: 9660268
    Abstract: An alkali-ion battery is provided with a transition metal cyanometallate (TMCM) sheet cathode and a non-alkaline metal anode. The fabrication method mixes TMCM powders, conductive additives, and a polytetrafluoroethylene binder with a solution containing water, forming a wet paste. The wet paste is formed into a free-standing sheet of cathode active material, which is laminated to a cathode current collector, forming a cathode electrode. The free-standing sheet of cathode active material has a thickness typically in the range of 100 microns to 2 millimeters. The cathode electrode is assembled with a non-alkaline metal anode electrode and an ion-permeable membrane interposed between the cathode electrode and anode electrode, forming an assembly. The assembly is dried at a temperature of greater than 100 degrees C. The dried assembly is then inserted into a container (case) and electrolyte is added. Thick anodes made from free-standing sheets of active material can be similarly formed.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: May 23, 2017
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Jie Song, Yuhao Lu, Xin Zhao
  • Patent number: 9614253
    Abstract: Provided is a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalato)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive. According to the electrolyte solution additive for a lithium secondary battery of the present invention, the electrolyte solution additive may improve output characteristics at high and low temperatures and may prevent a swelling phenomenon by suppressing the decomposition of PF6? on the surface of a cathode, which may occur during a high-temperature cycle of a lithium secondary battery including the electrolyte solution additive, and preventing an oxidation reaction of an electrolyte solution.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 4, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Gwang Yeon Kim, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Shul Kee Kim, Yu Ha An, Jin Hyun Park
  • Patent number: 9608265
    Abstract: Disclosed are a precursor of a positive active material for a rechargeable lithium battery and a preparation method thereof, and a positive active material and a rechargeable lithium battery including the same, and specifically a precursor for a rechargeable lithium battery is represented by the following Chemical Formula 1, wherein a manganese ion concentration deviation in the precursor is within 3 wt %. NixCoyMn1?x?y?zMz(OH)2??[Chemical Formula 1] (0<x<1, 0?y<1, 0.5?1?x?y?z, 0?z<1, and M is at least one kind of metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: March 28, 2017
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Jun Ho Song, Young Jun Kim, Jae-Hun Kim
  • Patent number: 9601778
    Abstract: An electrode active material has, as a main component, a mixture of an organic compound containing a rubeanic acid and cyanomethanesulfonylamide. The rubeanic acid is represented by the following general formula: In the formula, n indicates an integer between 1 and 20, and R1-R4 indicate hydrogen atoms, halogen atoms, or a prescribed substituent group such as a hydroxide group, a 1-3C alkyl group, an amino group, a phenyl group, a cyclohexyl group, or a sulfo group.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: March 21, 2017
    Assignees: MURATA MANUFACTURING CO., LTD., HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Masaharu Sato, Tomoaki Onoue, Hidehisa Mokudai, Toru Sukigara
  • Patent number: 9593016
    Abstract: A difluorophosphate effective as an additive for a nonaqueous electrolyte for secondary battery is produced by a simple method from inexpensive common materials. The difluorophosphate is produced by reacting lithium hexafluorophosphate with a carbonate in a nonaqueous solvent. The liquid reaction mixture resulting from this reaction is supplied for providing the difluorophosphate in a nonaqueous electrolyte comprising a nonaqueous solvent which contains at least a hexafluorophosphate as an electrolyte lithium salt and further contains a difluorophosphate. Also provided is a nonaqueous-electrolyte secondary battery employing this nonaqueous electrolyte.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: March 14, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Ryoichi Kato, Hirofumi Suzuki, Jun Sasahara, Hitoshi Suzuki
  • Patent number: 9595738
    Abstract: Disclosed is an electrolyte for lithium secondary batteries including a lithium salt and a non-aqueous solvent, in which a silane based material is included in an amount of 0.1 to 20 wt % based on the total weight of the electrolyte, and a lithium secondary battery including the same.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 14, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yourim Yoon, Jong Mo Jung, Jonghyun Chae, Chul Haeng Lee, Geun Chang Chung, Young Cheol Choi, Young Geun Choi, Seung Jae Yoon
  • Patent number: 9590267
    Abstract: Disclosed are a non-aqueous electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the non-aqueous electrolyte, and the non-aqueous electrolyte for a rechargeable lithium battery includes a lithium salt; a non-aqueous organic solvent; and trialkylsilyl borate as an additive, wherein the non-aqueous organic solvent may include a solvent having a low melting point of less than or equal to about ?50° C. and ionic conductivity of greater than or equal to about 6 mS/cm at 25° C.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 7, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Na-Rae Park, Jin-Hyunk Lim, Mi-Hyeun Oh
  • Patent number: 9502734
    Abstract: Various embodiments are directed to flexible battery structures comprising a flexible hinge region. For example, a flexible battery structure may comprise a plurality of battery layers. A first portion of the layers may be continuous across the hinge region and one or more cell regions. A second portion of the layers may be discontinuous at the hinge region.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: November 22, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: James Robert Lim, Yuting Yeh, Erik Avy Vaknine, David Wang
  • Patent number: 9484575
    Abstract: In a method for preparing a cathode material for an alkali-sulfur cell, e.g., a lithium-sulfur cell, at least one polyacrilonitrile-sulfur composite material and elemental sulfur are mixed, in order to increase the voltage, the capacitance and the energy density.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: November 1, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jean Fanous
  • Patent number: 9444085
    Abstract: A stack type battery includes a stack including: a plurality of cathode sheets; a plurality of anode sheets, which are alternately disposed with the cathode sheets; and a plurality of separators, where each of the separator is disposed between a corresponding cathode sheet of the cathode sheets and a corresponding anode sheet of the anode sheets, where the stack includes first to third protrusions, the first protrusion includes a portion of the cathode sheets which does not overlap the anode sheets and the separators, and the second protrusion includes a portion of the anode sheets which does not overlap the cathode sheets and the separators.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: September 13, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Moon-seok Kwon, Seung-sik Hwang, Jeong-kuk Shon, Jae-man Choi, Jun-hwan Ku, Min-sang Song
  • Patent number: 9419276
    Abstract: The present disclosure relates to an anode active material comprising a composite of a core-shell structure, a lithium secondary battery comprising the same, and a method of manufacturing the anode active material. According to an aspect of the present disclosure, there is provided an anode active material of a core-shell structure comprising a core including alloyed (quasi)metal oxide-Li (MOx—Liy) and a shell including a carbon material coated on a surface of the core. According to another aspect of the present disclosure, there is provided a method of manufacturing the anode active material of the core-shell structure. According to an aspect of the present disclosure, an anode active material with high capacity, excellent cycle characteristics and volume expansion control capacity, and high initial efficiency is provided.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 16, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Ju Lee, Yoon-Ah Kang, Mi-Rim Lee, Je-Young Kim, Hye-Ran Jung
  • Patent number: 9362595
    Abstract: The present invention is to provide a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous solvent includes 0.01 to 40% by volume of an ester having two alkyl groups at the ?-position carbon of the carbonyl group and being represented by the following general formula (I), and an energy storage device. (in the above formula, R1 is an alkyl group, an alkenyl group or an alkynyl group in which at least one of the hydrogen atoms may be substituted with a halogen atom, R2 and R3 are an alkyl group in which at least one of the hydrogen atoms may be substituted with a halogen atom, and R2 and R3 may be linked to each other to form a ring. However, when R2 and R3 do not form a ring, R3 is an alkyl group in which at least one of the hydrogen atoms may be substituted with a halogen atom.).
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: June 7, 2016
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Koji Abe, Kazuhiro Miyoshi, Yuichi Kotou
  • Patent number: 9337490
    Abstract: A lithium ion secondary battery 100A has negative electrode active material particles 710A which include graphite particles that are at least partially covered by an amorphous carbon film 750. The negative electrode, active material particles 710A have a TG weight-loss-on-heating onset temperature T1 which satisfies the condition 500° C.?T1?615° C. and a micro-Raman G-band half-width Gh which satisfies the condition 20?Gh?28. This configuration makes it possible to obtain a lithium ion secondary battery 100A in which the reaction resistance in a low-temperature environment can be kept low.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: May 10, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Takahata, Machiko Abe
  • Patent number: 9325013
    Abstract: According to one embodiment, there is provided an electrode material. The electrode material includes an active material which includes a titanium oxide compound having a monoclinic titanium dioxide crystal structure. The electrode material further includes a compound which exists on the surface of the active material and has a trialkylsilyl group represented by the formula (I). wherein R1, R2 and R3, which may be the same or different, respectively represent an alkyl group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: April 26, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Keigo Hoshina, Wen Zhang, Yasuhiro Harada, Hiroki Inagaki, Norio Takami
  • Patent number: 9312546
    Abstract: A stainless steel member comprising a stainless steel base metal; an oxide film located on the surface of the stainless steel base metal; an electroconductive layer located on the surface of the oxide film and comprising a nonmetallic electroconductive material; and an electroconductive material which is located so as to penetrate the oxide film and which electrically contacts the stainless steel base metal and the electroconductive layer is provided as a stainless steel member for a separator of a solid polymer fuel cell having excellent properties such that a degradation in performance is low even after prolonged operation. A solid polymer fuel cell using the stainless steel member is also provided.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 12, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hideya Kaminaka, Junko Imamura, Yasuto Higashida
  • Patent number: 9293771
    Abstract: A chargeable and dischargeable secondary battery for use in electronic devices, industrial machines, electric-powered vehicles, is provided, along with an anodic electrode and a copper foil for anode current collector. It is an anode for secondary battery that utilizes non-aqueous electrolyte, which comprises a silicon-type active material film formed on one side or both sides of a current collector made of copper foil or copper alloy foil, wherein 1 g/m2 to 14 g/m2 of silicon-type active material film is formed on said current collector, and the lightness Y value in a XYZ colorimetric system (CIE 1931 standard colorimetric system) for the surface of said anode, onto which said silicon-type active material film is formed, is 15 to 50, and the surface roughness (ten point average roughness) Rz specified by the Japanese Industrial Standards (JIS B0601-1994 ten point average roughness) is 1.0 ?m or more and 4.5 ?m or less.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: March 22, 2016
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Toshio Tani, Kiyoshi Yoshinari, Akitoshi Suzuki, Kensaku Shinozaki
  • Patent number: 9287582
    Abstract: A composition for forming a solid electrolyte layer for use in the formation of a solid electrolyte layer of a lithium ion secondary battery contains first particles made of a lanthanum titanate and second particles made of a lithium titanate. It is preferable that the first particles have an average particle size of 50 nm or more and 300 nm or less. It is preferable that the second particles have an average particle size of 10 nm or more and 50 nm or less.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: March 15, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tomofumi Yokoyama, Hirofumi Hokari, Sukenori Ichikawa
  • Patent number: 9252429
    Abstract: Provided are an electrode additive coated with a coating material made of electrically conductive materials such as metal hydroxides, metal oxides or metal carbonates, and an electrode and a lithium secondary battery comprising the same. The electrode additive in accordance with the present invention can improve high temperature storage characteristics of the battery, without deterioration of performance thereof.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: February 2, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Hong-Kyu Park, Kwang Hoon Kim, Sun kyu Kim, Seung Il Yoo, Jae-Up Jang, Yong Hoon Kwon, Kyungmin Chun
  • Patent number: 9252425
    Abstract: The invention relates to a method for preparing a polyacrylonitrile-sulfur composite material, in which, polyacrylonitrile is converted to cyclized polyacrylonitrile, and the cyclized polyacrylonitrile is reacted with sulfur to form a polyacrylonitrile-sulfur composite material. By a separation of the preparation method into two partial reactions, the reaction conditions are advantageously able to be optimized for the respective reactions and a cathode material is able to be provided for alkali-sulfur cells with improved electrochemical properties. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali-sulfur cell or an alkali-sulfur battery as well as to an energy store.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: February 2, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jens Fanous
  • Patent number: 9246191
    Abstract: A lithium secondary battery has an anode, a cathode, a separator between the anode and the cathode and a non-aqueous electrolyte. The non-aqueous electrolyte includes a lithium salt; and a non-linear carbonate-based mixed organic solvent in which (a) a cyclic carbonate compound, and (b) a propionate-based compound are mixed at a volume ratio (a:b) in the range from about 10:90 to about 70:30. The cathode has a capacity density in the range from about 3.5 to about 5.5 mAh/cm2 and a porosity in the range from about 18 to about 35%. This battery may be manufactured as a high-loading lithium secondary battery.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: January 26, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jong-Ho Jeon, Jeong-Ju Cho, Ho-Chun Lee
  • Patent number: 9231274
    Abstract: A non-aqueous electrolyte solution containing a lithium salt, a non-aqueous solvent, a cyclic carbonate compound having an unsaturated bond and a compound of the following formula (Ic): CFnH(3-n)CH2X3??(Ic) where n represents an integer of 1-3 and X3 represents a group selected from the group consisting of formulas (Ic-1), (Ic-2) and (Ic-4): —O—R31??(Ic-1) —O—Y3—O—R32??(Ic-2) and wherein R31, R32 and R34 represent, independently of each other, an alkyl group having 1-20 carbon atoms that may be substituted by a halogen atom, and Y3 represents a divalent hydrocarbon group having 1-10 carbon atoms that may be substituted by a halogen atom.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 5, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shinichi Kinoshita, Takashi Fujii, Teppei Yamada
  • Patent number: 9225010
    Abstract: The present invention intends to provide silicon-containing particles that, when used as a negative electrode active material for a nonaqueous electrolyte secondary battery, can form a nonaqueous electrolyte secondary battery that is less in volume change during charge/discharge and has high initial efficiency and excellent cycle characteristics. The present invention provides silicon-containing particles that are used as a negative electrode active material for a nonaqueous electrolyte secondary battery and have a diffraction line with a peak at 2?=28.6° in X-ray diffractometry, a negative electrode material for a nonaqueous electrolyte secondary battery therewith, a nonaqueous electrolyte secondary battery, and a method of manufacturing the silicon-containing particles.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: December 29, 2015
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tetsuo Nakanishi, Yoshiyasu Yamada, Kazuyuki Taniguchi, Motoyuki Yamada