The Alkali Metal Is Lithium Patents (Class 429/231.95)
  • Patent number: 10388959
    Abstract: In the formation of cathodes for lithium-sulfur battery cells, it is often desired to form the cathodes by resin-bonding particles of a sulfur-based cathode material as a porous cathode material layer on the surface(s) of a suitable metal current collector. It is found that the use of a copolymer of polyethylene oxide and polyvinyl alcohol, dissolved in water, provides a resin-particle slurry that is readily spreadable onto the current collector surface to form a uniform layer of porous cathode material particles. And upon evaporation of the water, the copolymer-bonded, sulfur-based particle coated cathodes function very well in assembled lithium-sulfur cells.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: August 20, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yingnan Dong, Mei Cai, Li Yang, Xiaosong Huang
  • Patent number: 10388945
    Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode mix layer, a negative electrode, and a nonaqueous electrolyte. The positive electrode mix layer contains a lithium transition metal oxide containing zirconium (Zr) and also contains a phosphate compound. The nonaqueous electrolyte contains a linear carboxylate. According to this configuration, the nonaqueous electrolyte secondary battery, which has excellent low-temperature output characteristics, can be provided. Thus, the nonaqueous electrolyte secondary battery is, for example, a power supply for driving a mobile data terminal such as a mobile phone, a notebook personal computer, a smartphone, or a tablet terminal and is particularly suitable for applications needing high energy density. Furthermore, the nonaqueous electrolyte secondary battery is conceivably used for high-output applications such as electric vehicles (EVs), hybrid electric vehicles (HEVs), and electric tools.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: August 20, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Daisuke Nishide, Atsushi Fukui
  • Patent number: 10381644
    Abstract: A non-aqueous electrolyte secondary battery that includes a positive electrode having a positive electrode active material layer and a positive electrode current collector; a negative electrode having a negative electrode active material layer and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte solution, which are enclosed in an exterior material. The positive electrode active material layer includes a lithium transition metal oxide having a layered crystal structure, and the negative electrode active material layer includes a lithium titanium oxide having a spinel-type crystal structure, and having a thickness of 20.0 ?m or more and 33.4 ?m or less. A ratio (R) between the thickness of the positive electrode active material layer and the thickness of the negative electrode active material layer is 0.59?(R)?1.50 or 0.59?(R)?1.14.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 13, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masaharu Itaya
  • Patent number: 10374221
    Abstract: A battery electrode composition is provided comprising composite particles, with each composite particle comprising active material and a scaffolding matrix. The active material is provided to store and release ions during battery operation. For certain active materials of interest, the storing and releasing of the ions causes a substantial change in volume of the active material. The scaffolding matrix is provided as a porous, electrically-conductive scaffolding matrix within which the active material is disposed. In this way, the scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 6, 2019
    Assignee: Sila Nanotechnologies, Inc.
    Inventors: Gleb Nikolayevich Yushin, Bogdan Zdyrko, Addison Newcomb Shelton, Eugene Michael Berdichevsky, Igor Luzinov, Alexander Thomas Jacobs, Eerik Torm Hantsoo, George Pius Gomes
  • Patent number: 10367198
    Abstract: A negative electrode active material for an electric device includes an alloy containing Si in a range of greater than or equal to 27% by mass and less than 100% by mass, Sn in a range of greater than 0% by mass and less than or equal to 73% by mass, V in a range of greater than 0% by mass and less than or equal to 73% by mass, and inevitable impurities as a residue. The negative electrode active material can be obtained with, for example, a multi DC magnetron sputtering apparatus by use of Si, Sn, and V as targets. An electric device using the negative electrode active material can achieve long cycle life and ensure a high capacity and cycle durability.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 30, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Manabu Watanabe, Masao Yoshida, Osamu Tanaka
  • Patent number: 10367232
    Abstract: Embodiments of localized superconcentrated electrolytes (LSEs) for stable operation of electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, are disclosed. Electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, including the LSEs are also disclosed. The LSEs include an active salt, a solvent in which the active salt is soluble, and a diluent in which the active salt is insoluble or poorly soluble. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: July 30, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Ji-Guang Zhang, Jianming Zheng, Shuru Chen
  • Patent number: 10340519
    Abstract: To provide a means capable of improving the cycle durability of an electric device such as a lithium ion secondary battery. A negative electrode active material containing a silicon-containing alloy having ternary alloy composition represented by Si—Sn-M (M is one or two or more transition metal elements) or quaternary alloy composition represented by Si—Sn-M-Al (M is one or two or more transition metal elements) and having a structure wherein an a-Si phase containing amorphous or low crystalline silicon containing tin in a silicon crystal structure in form of a solid solution is dispersed in a silicide phase containing a silicide of a transition metal as a main component is used in an electric device. The negative electrode active material improves the cycle durability of an electric device such as a lithium ion secondary battery.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: July 2, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Nobutaka Chiba, Tomohiro Kaburagi, Youichi Yoshioka, Manabu Watanabe, Masaya Arai
  • Patent number: 10340511
    Abstract: According to one embodiment, an electrode is provided. The electrode includes a current collector and an active material-containing layer. The active material-containing layer is provided on the current collector. The active material-containing layer includes active material particles and insulator particles. The active material-containing layer has a first surface facing the current collector and a second face as a surface of the active material-containing layer. The second face includes a surface of a part of the insulator particles. A volume ratio of the insulator particles decreases from the second face toward the first surface in the active material-containing layer.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 2, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takuya Iwasaki, Norio Takami
  • Patent number: 10333137
    Abstract: A battery electrode composition is provided comprising composite particles, with each composite particle comprising active material and a scaffolding matrix. The active material is provided to store and release ions during battery operation. For certain active materials of interest, the storing and releasing of the ions causes a substantial change in volume of the active material. The scaffolding matrix is provided as a porous, electrically-conductive scaffolding matrix within which the active material is disposed. In this way, the scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: June 25, 2019
    Inventors: Gleb Nikolayevich Yushin, Bogdan Zdyrko, Addison Newcomb Shelton, Eugene Michael Berdichevsky, Igor Luzinov, Alexander Thomas Jacobs, Eerik Torm Hantsoo, George Pius Gomes
  • Patent number: 10333141
    Abstract: A process for producing a silicon:silicon oxide:lithium composite (SSLC) material useful as a negative electrode active material for non-aqueous battery cells includes: producing a partially lithiated SSLC material by way of mechanical mixing; subsequently producing a further prelithiated SSLC material by way of spontaneous lithiation procedure; and subsequently producing a delithiated SSLC material by way of reacting lithium silicide within the dispersed prelithiated SSLC material with organic solvent(s) to extract lithium from the prelithiated SSLC material, until reactivity of lithium silicide within the prelithiated SSLC material with the organic solvent(s) ceases. The delithiated SSLC material is a porous plastically deformable matrix having nano silicon embedded therein. The delithiated SSLC material can have a lithium silicide content of less than 0.5% by weight.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 25, 2019
    Assignee: EOCELL LTD.
    Inventors: Yuriy Matus, Michael Pak
  • Patent number: 10326161
    Abstract: A secondary battery includes: a cathode and an anode that are opposed to each other with a separator in between; and an electrolytic solution. The cathode includes a cathode active material layer on a cathode current collector. The anode includes an anode active material layer on an anode current collector. A heat-resistant layer is provided at least in a region in which the cathode active material layer and the anode active material layer are opposed to each other between the cathode and the anode. The heat-resistant layer includes a material having a higher melting point or higher decomposition temperature than a melting point or decomposition temperature of the separator. The electrolytic solution includes an unsaturated cyclic ester carbonate.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: June 18, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki Ihara, Tadahiko Kubota
  • Patent number: 10312518
    Abstract: An anode and a secondary battery capable of improving the charge and discharge efficiency are provided. The anode includes an anode current collector, and an anode active material layer provided on the anode current collector. The anode active material layer has a plurality of anode active material particles containing at least one of a simple substance of silicon, a compound of silicon, a simple substance of tin and a compound of tin, and has a coat containing an oxo acid salt in at least part of the surface of the anode active material particles.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: June 4, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki Yamaguchi, Hideki Nakai, Masayuki Ihara, Tadahiko Kubota, Shigeru Fujita
  • Patent number: 10297879
    Abstract: A lithium ion battery includes an electrolyte maintained in a separator, the separator having two sides; a negative electrode of lithium titanate (Li4Ti5O12) disposed on one side of the separator; a negative current collector associated with the negative electrode; a positive electrode disposed on an opposite side of the separator; and a positive current collector associated with the positive electrode. The lithium ion battery further includes gas traps to trap gases in the battery, wherein the gas traps include titanium diboride (TiB2) nanotubes. A method includes providing the titanium diboride nanotubes, carbon nanotubes, carbon fibers, and/or graphene as gas traps in a lithium ion battery having a negative electrode of lithium titanate.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 21, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhongyi Liu, Ingrid A. Rousseau
  • Patent number: 10290860
    Abstract: Provided are a composite for an anode active material and a method of preparing the same. More particularly, the present invention provides a composite for an anode active material including a (semi) metal oxide and an amorphous carbon layer on a surface of the (semi) metal oxide, wherein the amorphous carbon layer comprises a conductive agent, and a method of preparing the composite.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 14, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Rae Hwan Jo, Je Young Kim
  • Patent number: 10276859
    Abstract: Embodiments of the present invention disclose a composition of matter comprising a silicon (Si) nanoparticle coated with a conductive polymer. Another embodiment discloses a method for preparing a composition of matter comprising a plurality of silicon (Si) nanoparticles coated with a conductive polymer comprising providing Si nanoparticles, providing a conductive polymer, preparing a Si nanoparticle, conductive polymer, and solvent slurry, spraying the slurry into a liquid medium that is a non-solvent of the conductive polymer, and precipitating the silicon (Si) nanoparticles coated with the conductive polymer. Another embodiment discloses an anode comprising a current collector, and a composition of matter comprising a silicon (Si) nanoparticle coated with a conductive polymer.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: April 30, 2019
    Assignee: The Regents of the University of California
    Inventor: Gao Liu
  • Patent number: 10270102
    Abstract: The present disclosure relates to an electrode that may minimize an electrical resistance increase caused by a binder polymer or a conductive material used in the electrode and provide a high capacity, a method for manufacturing the same, and an electrochemical device comprising the electrode, and an electrode mix slurry is prepared using a high shearing mixing process for each step such that fine grained conductive material and a binder polymer are uniformly dispersed in an electrode mix, and a high capacity electrode active material is used in the electrode mix, to manufacture a high capacity electrochemical device.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: April 23, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sang-Kyun Lee, Byoung-Bae Lee, Ki-Young Kwon, Bok-Kyu Choi, Sei-Woon Oh
  • Patent number: 10270095
    Abstract: A lithium battery including a cathode; an anode; and an electrolyte disposed between the cathode and the anode is disclosed. In the lithium battery, the cathode includes a nickel-based lithium transition metal oxide having primary particles having an average particle diameter of 2 ?m or more, and the anode includes graphite and a silicon-based compound.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Young-Hun Lee, Na-Ri Park, Yong-Chul Park, Hong-Kyu Choi
  • Patent number: 10263250
    Abstract: Stabilized lithium powder according to an embodiment of this disclosure includes lithium particles. Each lithium particle includes an inorganic compound on a surface thereof, the inorganic compound contains lithium hydroxide, and the lithium hydroxide is contained by 2.0 wt% or less relative to the entire stabilized lithium powder.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: April 16, 2019
    Assignee: TDK CORPORATION
    Inventors: Masahiro Tsuchiya, Tomohiko Hasegawa, Kazuya Kai, Atsushi Sano
  • Patent number: 10256469
    Abstract: A high-capacity nonaqueous electrolyte secondary battery having good load characteristics is provided. The nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains the active material composed of a lithium transition metal oxide and a positive electrode additive composed of an oxide that contains Li and at least two elements other than Li and oxygen and has an antifluorite structure. The nonaqueous electrolyte secondary battery obtained is charged until the potential of the positive electrode is 4.0 V or higher and 4.65 V or lower (vs. Li/Li+).
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: April 9, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Atsushi Kawamura, Kazuhiro Hasegawa, Sho Tsuruta, Atsushi Fukui
  • Patent number: 10243208
    Abstract: Disclosed are a precursor of an electrode active material for a lithium secondary battery, in which a metal material ionizable through electrolytic decomposition is uniformly coated on a surface of a primary precursor formed of a transition metal hydrate, and a method of preparing the same.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: March 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Dae Jin Lee, Joo Hong Jin, Woo Yeon Kong, Sun Sik Shin, Wang Mo Jung
  • Patent number: 10236499
    Abstract: Provided are polycrystalline lithium manganese oxide particles represented by Chemical Formula 1 and a method of preparing the same: Li(1+x)Mn(2?x?y?f)AlyMfO(4?z)??<Chemical Formula 1> where M is any one selected from the group consisting of boron (B), cobalt (Co), vanadium (V), lanthanum (La), titanium (Ti), nickel (Ni), zirconium (Zr), yttrium (Y), and gallium (Ga), or two or more elements thereof, 0?x?0.2, 0<y?0.2, 0<f?0.2, and 0?z?0.2. According to an embodiment of the present invention, limitations, such as the Jahn-Teller distortion and the dissolution of Mn2+, may be addressed by structurally stabilizing the polycrystalline lithium manganese oxide particles. Thus, life characteristics and charge and discharge capacity characteristics of a secondary battery may be improved.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: March 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ick Soon Kwak, Seung Beom Cho, Hwa Seok Chae
  • Patent number: 10236533
    Abstract: Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which two or more unit cells, each of which includes a separator disposed between a positive electrode and a negative electrode, each having an electrode mixture including an electrode active material applied to a current collector, are wound using a sheet type separation film, wherein the positive electrode is configured to have a structure in which a positive electrode mixture is coated on an aluminum foil as the current collector and the negative electrode is configured to have a structure in which a negative electrode mixture is coated on a metal foil, other than the aluminum foil, as the current collector, the unit cells include one or more full-cells and/or bi-cells, one of the unit cells located at each outermost side of the electrode assembly is configured such that one outermost electrode of the unit cell is a single-sided electrode, the single-sided electrode being configured such that the electrode mixtur
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yu Na Jeong, Moon Young Jung, Dong-Myung Kim, Ki Tae Kim, Sungwon Lee
  • Patent number: 10230130
    Abstract: The present invention is directed to a thin film lithium-ion battery having at least a laminate structure therein. The laminate structure includes a bottom current collector layer, an anode consisting of a superlattice layer and a silicon based layer, an electrolyte and separator, a cathode and a top current collector layer sequentially stacked together. The electrolyte and separator of the laminate structure contains lithium ions.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 12, 2019
    Inventor: Chia-Gee Wang
  • Patent number: 10230099
    Abstract: In a battery production process, a positive electrode active material having a reaction-suppressing layer that does not easily peel off formed on the surface thereof, and a positive electrode and an all-solid-state battery that use said material are provided. The present invention involves positive electrode active material particles for an all-solid-state battery containing sulfide-based solid electrolyte. The positive electrode active material particles are an aggregate containing two or more particles. The surface of the aggregate is coated with a reaction-suppressing layer for suppressing reactions with the sulfide-based solid electrolyte.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: March 12, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takayuki Uchiyama
  • Patent number: 10224538
    Abstract: In an aspect, a positive electrode for a lithium rechargeable battery including a current collector; a positive active material layer disposed on the current collector, wherein the positive active material layer includes a positive active material, active carbon, and an additive.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 5, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-Woo Han, Young-Kee Kim, Sun-Il Park, Sumihito Ishida
  • Patent number: 10211452
    Abstract: A lithium ion battery component includes a support selected from the group consisting of a current collector, a negative electrode, and a porous polymer separator. A lithium donor is present i) as an additive with a non-lithium active material in a negative electrode on the current collector, or ii) as a coating on at least a portion of the negative electrode, or iii) as a coating on at least a portion of the porous polymer separator. The lithium donor has a formula selected from the group consisting of Li8-yMyP4, wherein M is Fe, V, or Mn and wherein y ranges from 1 to 4; Li10-yTiyP4, wherein y ranges from 1 to 2; LixP, wherein 0<x?3; and Li2CuP.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 19, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Meng Jiang, Bob R. Powell, Jr., Jung-Hyun Kim
  • Patent number: 10199647
    Abstract: The present invention concerns specific new compounds of formula Li(2?x)Na(x)MO(2?y/2)F(1+y) (where 0?x?0.2 and ?0.6?y?0,8 and M is a transition metal), cathode material comprising the new compounds, batteries and lithium-cells comprising said new compound or cathode material, a process for the production of the new compound and their use.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: February 5, 2019
    Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Ruiyong Chen, Shuhua Ren, Sylvio Indris, Maximillian Fichtner, Horst Hahn
  • Patent number: 10199678
    Abstract: The present invention is a negative electrode material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiOx, where 0.5?x?1.6, the silicon compound containing in its interior a lithium compound and one or more ions selected from Group 1 metal ions, Group 2 metal ions, and substitutable ammonium ions. This negative electrode material for a non-aqueous electrolyte secondary battery can increase the battery capacity and improve the cycle performance and the battery initial efficiency.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: February 5, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi Kamo, Takakazu Hirose, Hiroki Yoshikawa
  • Patent number: 10193155
    Abstract: A cathode material which does not easily deteriorate when used in batteries, a method for producing cathode materials, a cathode, and a lithium ion battery are provided. A cathode material including a cathode active material, in which the cathode active material is expressed by Li1+xAyDzPO4 (here, A represents one or more metal elements selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, D represents one or more metal 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<1, 0<y<1, 0?z<1.5, and 0.9<y+z?1), and, in thermogravimetric analysis in an inert gas atmosphere, when a temperature is increased in a temperature range from 100° C. to 300° C. at a temperature-increase rate of 10° C./minute, a weight loss ratio in the temperature range is 0.3% by weight or less.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: January 29, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Masataka Oyama, Satoru Oshitari, Ryuuta Yamaya
  • Patent number: 10181600
    Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: January 15, 2019
    Assignee: UMICORE
    Inventors: Jean Scoyer, Stijn Put, Daniël Nelis, Kris Driesen
  • Patent number: 10177403
    Abstract: A non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material has improved cycle life. A negative-electrode active material particle (10) according to an embodiment includes a lithium silicate phase (11) represented by Li2zSiO(2+z) {0<z<2}, silicon particles (12) dispersed in the lithium silicate phase (11), and a metallic compound (15) (other than lithium compounds and silicon oxides) dispersed in the lithium silicate phase (11). The metallic compound (15) is preferably selected from zirconium oxide, aluminum oxide, zirconium carbide, tungsten carbide, and silicon carbide.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: January 8, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hiroshi Minami, Taizou Sunano
  • Patent number: 10177379
    Abstract: A positive electrode material for a secondary battery and a method for manufacturing the same are provided, in which manganese fluorophosphate containing lithium or sodium can be used as an electrode material. That is, a positive electrode material for a lithium/sodium battery is provided, in which intercalation/deintercalation of sodium/lithium ions is possible due to a short lithium diffusion distance caused by nanosizing of particles. Furthermore, a positive electrode material for a lithium/sodium battery is provided, which has electrochemical activity due to an increase in electrical conductivity by effective carbon coating.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: January 8, 2019
    Assignee: Hyundai Motor Company
    Inventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim
  • Patent number: 10177386
    Abstract: The present invention provides a positive electrode active material for a lithium secondary battery which is capable of preventing the degeneration of a positive electrode active material and the generation of a gas during operating a battery due to humidity, by including a surface treatment layer of an amorphous glass including an alkali metal oxide and an alkaline earth metal oxide on the surface of a core including a lithium composite metal oxide and by decreasing humidity reactivity, and a secondary battery including the same.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: January 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Dae Jin Lee, Wang Mo Jung, Seong Hoon Kang
  • Patent number: 10170757
    Abstract: Provided is a negative electrode material that is suitable for use in a negative electrode of a lithium ion secondary battery having high capacity and excellent cycle characteristics. Also provided are a negative electrode and a lithium ion secondary battery using the same. The negative electrode material for lithium ion secondary battery comprises a particle that contains silicon and is capable of storing and releasing a lithium ion and that is characterized, in a volume-based distribution as measured with a laser diffraction particle size distribution meter, by (mode diameter—D50)/D50=0.13 or greater and (D90—mode diameter)/D90=0.28 or less, where the mode diameter is the most frequent value in the distribution, D50 is the diameter at 50% accumulation and D90 is the diameter at 90% accumulation.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: January 1, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Koichiro Watanabe
  • Patent number: 10168389
    Abstract: A lithium ion secondary battery including a cathode layer, an anode layer including an anode active material and a coating including a metal element, wherein the coating is disposed on the anode active material; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the coating has an electrochemical reaction potential with lithium that is greater than an electrochemical reaction potential of the anode active material with lithium.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Satoshi Fujiki, Takanobu Yamada, Yuichi Aihara, Naoki Suzuki
  • Patent number: 10141573
    Abstract: The teachings herein are directed at a lithium secondary battery negative electrode active material consisting of a Sn Sb based sulfide that delivers a high electrode capacity density, excellent output characteristics, and excellent cycle life characteristics and also provide a method for manufacturing the lithium secondary battery negative electrode active material, said method being capable of easily manufacturing the high performance lithium secondary battery negative electrode active material at low cost without requiring a high-temperature processing step and special facilities as required in a glass melting method. The negative electrode active material preferably is prepared using a method that includes a step of obtaining a Sn Sb based sulfide precipitate by adding an alkali metal sulfide to a mixed solution of a tin halide and an antimony halide.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: November 27, 2018
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, ISUZU GLASS LTD.
    Inventors: Takashi Mukai, Taichi Sakamoto, Yuta Ikeuchi, Tetsuo Sakai, Naoto Yamashita, Koichiro Ikeda, Kiichiro Yamaguchi
  • Patent number: 10128493
    Abstract: Provided is a negative electrode active material which can improve discharge capacity per amount and charge-discharge cycle characteristics. The negative electrode active material of the present embodiment contains at least one of material A and material B, and material C: material A: carbonaceous powder material in which a ratio of a peak intensity at 1360 cm?1 with respect to a peak intensity at 1580 cm?1 in the Raman spectrum is not more than 0.5; material B: carbonaceous powder material in which a ratio of a peak intensity at 1360 cm?1 with respect to a peak intensity at 1580 cm?1 in the Raman spectrum is more than 0.5; material C: powder material whose main component is an active substance made up of an alloy phase. This alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding the metal ions.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 13, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Sukeyoshi Yamamoto, Noriyuki Negi, Tatsuo Nagata
  • Patent number: 10115994
    Abstract: Solid-state battery structures and methods of manufacturing solid-state batteries are disclosed. More particularly, embodiments relate to solid-state batteries having one or more subdivided electrode layers. Other embodiments are also described and claimed.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: October 30, 2018
    Assignee: Apple Inc.
    Inventors: Bernd Jurgen Neudecker, Shawn William Snyder, Tetsuya Ishikawa, Tor Collins Anderson
  • Patent number: 10115998
    Abstract: A lithium ion electrochemical cell is described in which an electrode comprises a lithiation agent. The lithiation agent, which comprises a lithium constituent, is designed to provide an excess source of lithium to minimize capacity loss of the lithium ion electrochemical cell. The anode of the lithium ion cell comprises a material matrix comprising carbon, graphene and an active element such as silicon or tin.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 30, 2018
    Assignee: SINODE SYSTEMS, INC.
    Inventors: Cary Michael Hayner, Rachid Amine, Christine A. Frysz
  • Patent number: 10109891
    Abstract: A lithium battery including a positive electrode, a negative electrode containing lithium, and a non-aqueous electrolyte having lithium ion conductivity. The positive electrode includes at least one of a manganese oxide and a fluorinated graphite. A powdery or fibrous carbon material adheres to at least part of a surface of the negative electrode, the surface facing the positive electrode. The non-aqueous electrolyte includes a non-aqueous solvent, a solute, and an additive. The solute includes LiClO4, and the additive is LiBF4. The ratio of LiBF4 is, for example, 1 to 100 parts by mass, relative to 100 parts by mass of the solute.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 23, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Touta Mizuta, Shinichi Kawaguchi, Takao Uyama
  • Patent number: 10109852
    Abstract: Electrodes that include at least one active material layer, and at least one graphitized carbon structure layer are disclosed. The active material layer may include an active metal ion complex. The at least one active material layer may form an active material stack that includes a positive active material layer, a negative active material layer, and an electrolyte layer disposed between the positive active material layer and the negative active material layer. The electrode may be configured as an energy storage structure. The energy storage structure may include a first graphitized carbon structure layer, a second graphitized carbon structure layer, and an active material stack disposed between the first graphitized carbon structure layer and the second graphitized carbon structure layer. Methods of making energy storage structures are also disclosed.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 23, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Thomas Madden, Christopher J. Rothfuss
  • Patent number: 10084206
    Abstract: A fast charge system 20 including a fast charge composite 60 and a secondary battery 22 enables the secondary battery 22 to be charged in less time than is possible with traditional charging means. The fast charge composite 60 includes a separator 62 of cellulose wetted with a second electrolyte 64 that contains third ions 94 having a positive charge and fourth ions 96 having a negative charge and contacting the adjacent electrode 32, 46 of the secondary battery 22. A fast charge layer 30 of thermally expanded graphite is disposed adjacent and parallel to the separator 62. A second electrical power PFC, which may be greater than a maximum charging power PMAX transferred through traditional charging, is transferred as a function of a second voltage V2 applied between the fast charge layer 30 and the battery lead 34, 50 of the adjacent electrode 32, 46, which causes the third ions 94 and the fourth ions 96 to migrate through the separator 62 to cause the secondary battery 22 to become charged.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: September 25, 2018
    Inventor: Alexandre M. Iarochenko
  • Patent number: 10056655
    Abstract: A manufacturing method of a nonaqueous electrolyte secondary battery includes: a lithium phosphate dispersion manufacturing step of manufacturing a lithium phosphate dispersion by dispersing lithium phosphate in a solvent without adding a positive-electrode active material; a positive electrode mixture paste manufacturing step of manufacturing a positive electrode mixture paste by mixing the lithium phosphate dispersion with a positive electrode material including the positive-electrode active material; and a step of manufacturing a positive electrode including a positive electrode mixture layer on a surface of a current collector member by applying the positive electrode mixture paste on the surface of the current collector member and drying the positive electrode mixture paste.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: August 21, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuyuki Yamazaki, Masanori Kitayoshi, Takashi Miura
  • Patent number: 10033037
    Abstract: Provided is an all-solid lithium ion secondary battery including a sintered body including a solid electrolyte layer and a positive electrode layer and a negative electrode layer which are stacked alternately with the solid electrolyte layer interposed therebetween, wherein: the positive electrode layer, the negative electrode layer, and the solid electrolyte layer include a compound containing lithium and boron; and a content of lithium and boron contained in the compound to a total of a positive electrode active material included in the positive electrode layer, a negative electrode active material included in the negative electrode layer, and a solid electrolyte included in the solid electrolyte layer is respectively 4.38 mol % to 13.34 mol % in terms of Li2CO3 and 0.37 mol % to 1.11 mol % in terms of H3BO3.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: July 24, 2018
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Sato, Atsushi Sano
  • Patent number: 10033041
    Abstract: Disclosed herein is an artificial solid electrolyte interface (SEI) cathode material for use in a rechargeable battery, particularly a lithium battery. The artificial SEI cathode material includes in its structure, a cathode material, and a conductive polymer/carbon composite encapsulating the cathode material for forming an artificial solid electrolyte interface (SEI) around the cathode in the secondary battery, in which the conductive polymer/carbon composite is no more than 5% by weight of that of the artificial cathode material. Also provided herein is a lithium secondary battery including a cathode formed from the artificial SEI cathode material that renders the lithium secondary battery a reduced level of equivalent series resistance (ESR), an enhanced level of capacitance, and a long cycle life-time.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: July 24, 2018
    Assignee: SILVER H-PLUS TECHNOLOGY CO., LTD.
    Inventors: Li-Hsiang Perng, Chen-Chun Chuang, Chih-Chan Lin
  • Patent number: 10026960
    Abstract: Provided are a method of manufacturing a cathode active material coating solution for a secondary battery including preparing a mixed solution by dispersing a metal precursor and a chelating agent in a glycol-based solvent, performing primary heating on the mixed solution, and performing secondary heating on the mixed solution, and a cathode active material coating solution for a secondary battery manufactured by the above method.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: July 17, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Dong Kwon Lee, Seung Beom Cho, Jun Seok Nho, Wook Jang
  • Patent number: 10020501
    Abstract: A method of forming a carbon coating includes heat treating lithium transition metal composite oxide Li0.9+aMbM?cNdOe, in an atmosphere of a gas mixture including carbon dioxide and compound CnH(2n+2?a)[OH]a, or compound CnH(2n), wherein M and M? are different from each other and are selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, and Ba, and N is different from M and M? and is selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, Ba, and a combination thereof, or selected from B, F, S, and P, and at least one of the M, M?, and N comprises Ni, Co, Mn, Mo, Cu, or Fe.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 10, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Hyuk Son, Jun Young Mun, Jin Hwan Park, Chan Ho Pak, Seung Jae Lee, Hyo Rang Kang
  • Patent number: 10020490
    Abstract: In a method for producing an anode for a lithium cell, and/or a lithium cell as well as anodes and lithium cells of this type, to extend the service life of the lithium cell and to selectively form a first protective layer including electrolytic decomposition products, on an anode including metallic lithium, a first electrolyte is applied on the anode ex situ, i.e., prior to assembling the lithium cell to be produced. To stabilize the first protective layer, a second protective layer is applied in a subsequent method step.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: July 10, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Timm Lohmann
  • Patent number: 9997766
    Abstract: A highly effective positive electrode is obtained by using a material such as Na which is an inexpensive abundant resource. A positive electrode active material of sodium transition metal phosphate of olivine structure in which the sodium transition metal phosphate of olivine structure includes, a phosphorus atom that is located at the center of a tetrahedron having an oxygen atom in each vertex, a transition metal atom that is located at the center of a first octahedron having an oxygen atom in each vertex; and a sodium atom that is located at the center of a second octahedron having an oxygen atom in each vertex, and adjacent sodium atoms are arranged one-dimensionally in a <010> direction.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: June 12, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Akiharu Miyanaga, Junichi Koezuka, Masahiro Takahashi
  • Patent number: 9991517
    Abstract: Provided is a carbonaceous material for a non-aqueous electrolyte secondary battery anode having high discharge capacity per unit volume and excellent storage characteristics. The carbonaceous material for a non-aqueous electrolyte secondary battery anode of the present invention has a true density (?Bt) determined by a pycnometer method using butanol of not less than 1.55 g/cm3 and less than 1.75 g/cm3 and a discharge capacity of an anode at 0.05 V to 1.5 V in terms of a lithium reference electrode standard of not less than 180 mAh/g. Furthermore, the slope 0.9/X (Vg/Ah) of a discharge curve calculated from a discharge capacity X (Ah/g) and a potential difference of 0.9 (V) corresponding to 0.2 V to 1.1 V in terms of a lithium reference electrode standard is not greater than 0.75 (Vg/Ah), and an absorbed moisture quantity after storage for 100 hours in a 25° C. 50% RH air atmosphere is not greater than 1.5 wt %.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: June 5, 2018
    Assignee: KUREHA CORPORATION
    Inventors: Makoto Imaji, Kayoko Okada, Yasuhiro Tada, Naohiro Sonobe, Mayu Komatsu