Organic Component Is An Expander Or Addition Agent For Improving Electrode Capacity Or Plating Characteristics Patents (Class 429/215)
  • Patent number: 10573877
    Abstract: A lead-acid battery includes a negative electrode plate; a positive electrode plate; and an electrolyte solution, the negative electrode plate including a negative electrode material containing an inorganic sulfate and an anti-shrink agent, the inorganic sulfate having a 111 crystal plane or an average secondary particle size of 3.8 ?m or more, the anti-shrink agent being adsorbed to the inorganic sulfate.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: February 25, 2020
    Assignee: GS Yuasa International Ltd.
    Inventor: Ikumi Motoi
  • Patent number: 10497979
    Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with high energy density is provided. Alternatively, a highly reliable power storage device is provided. Alternatively, a long-life power storage device is provided. A power storage device is characterized by comprising a separator, a first electrode, a second electrode, an electrolytic solution, in which the separator is provided between the first electrode and the second electrode, the first electrode includes an active material layer and a current collector, the first electrode includes a pair of coating films between which the current collector is sandwiched, the active material layer includes a region in contact with the current collector, the active material layer includes a region in contact with at least one of the pair of coating films, and the electrolytic solution includes an alkali metal salt and an ionic liquid.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 3, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jun Ishikawa, Kazuhei Narita, Teppei Oguni, Aya Uchida
  • Patent number: 10446850
    Abstract: A binder resin composition for secondary battery electrodes is described as containing a polymer (A) that has a structural unit represented by general formula (1) and a water-insoluble particulate polymer (B-1) and/or a water-soluble polymer (B-2) where (A), (B-1) and (B-2) are defined as described. A slurry for secondary battery electrodes contains the binder resin composition, an active material and a solvent. An electrode for secondary batteries is provided with a collector and an electrode layer that is arranged on the collector, where the electrode layer contains an active material and the binder resin composition. Alternatively, the electrode layer is obtained by applying the slurry for secondary battery electrodes to the collector, and drying the slurry thereon.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: October 15, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Fumino Momose, Haruki Okada, Ayako Shimonaka, Mitsufumi Nodono, Daisuke Fujikawa, Hikaru Momose, Akihiro Ishii
  • Patent number: 10418668
    Abstract: Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator sandwiched therebetween. The positive and negative electrodes and separator may each include an electrolyte system comprising one or more lithium salts, one or more solvents, and one or more complexing agents. The one or more complexing agents binds to metal contaminants found within the electrochemical cell to form metal ion complex compounds that minimize or suppress formation of dendrite protrusions on the negative electrode at least by increasing the horizontal area (e.g., decreasing the height) of any dendrite formation.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 17, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qiang Wu, Zhiqiang Yu, Haijing Liu, Honggu Pan, Ion C. Halalay
  • Patent number: 10411252
    Abstract: A positive electrode composition includes a binder material; an electrically conductive material dispersible in the binder material and comprising a plurality of conductive carbon particles; an active material dispersible in the binder material and comprising a plurality of active particles; and a coating agent comprising one of a non-lithiated polymer, an at least partially-lithiated polymer, and a fully-lithiated polymer. The coating agent is disposed on and at least partially encapsulates at least one of: each of the plurality of conductive carbon particles and each of the plurality of active particles. A positive electrode of a lithium ion electrochemical cell includes a current collector comprising aluminum and a layer formed from the positive electrode composition and disposed on the current collector. A method of forming the positive electrode is also disclosed.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 10, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Nicholas P. W. Pieczonka, Jung-Hyun Kim, Bob R. Powell, Jr., Mark W. Verbrugge
  • Patent number: 10128500
    Abstract: A preparation method of a lithium nickel manganese oxide cathode material of a battery includes steps of providing a nickel compound, a manganese compound, a first quantity of lithium compound, a second quantity of lithium compound and a compound containing metallic ions, mixing the nickel compound, the first quantity of lithium compound, dispersant and deionized water to produce first product solution, adding the manganese compound into the first product solution and mixing to produce second product solution, performing a first grinding to produce first precursor solution, mixing the second quantity of lithium compound, the compound containing the metallic ions and the first precursor solution, then performing a second grinding to produce second precursor solution, and calcining the second precursor solution to produce the lithium nickel manganese oxide cathode material of the battery, the formula of which is written by Li1.0+xNi0.5Mn1.5MyO4. Therefore, the activation energy of reaction can be reduced.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: November 13, 2018
    Assignee: ADVANCED LITHIUM ELECTROCHEMISTRY CO., LTD.
    Inventors: Chun-Ming Huang, Han-Wei Hsieh, Hsiang-Pin Lin
  • Patent number: 10033044
    Abstract: The present invention relates to a conducting material composition capable of forming an electrode in which at least two kinds of carbon based materials are contained in a uniformly dispersed state to enable a battery such as a lithium rechargeable battery having more improved electrical and lifetime characteristics to be provided, and a slurry composition for forming an electrode of a lithium rechargeable battery and a lithium rechargeable battery using the same. The conducting material composition contains: at least two kinds of conductive carbon-based materials selected from the group consisting of carbon nano tube, graphene, and carbon black; and a dispersant containing a plurality kinds of poly aromatic hydrocarbon oxides, wherein the dispersant contains poly aromatic hydrocarbon oxides having a molecular weight of 300 to 1000 at a content of 60 wt.% or more.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: July 24, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Kil Sun Lee, Kwon Nam Sohn, Won Jong Kwon, Seung Bo Yang, In Young Kim, Kwang Hyun Yoo, Mi Jin Lee, Jin Yeong Lee
  • Patent number: 10003069
    Abstract: A lead-acid battery includes a negative electrode material containing graphite and barium sulfate. A ratio S/W of an average plate interval S between a negative electrode plate and a positive electrode plate, to a mass W of the negative electrode material per one negative electrode plate is 0.01 mm/g or more.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: June 19, 2018
    Assignee: GS Yuasa International Ltd.
    Inventors: Kenji Yamauchi, Masaaki Kyo, Satoshi Inagaki
  • Patent number: 9774040
    Abstract: The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and conductive nanoparticles, a preparation method thereof, and a lithium secondary battery including the same.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: September 26, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Wook Jang, Seung Beom Cho, Ick Soon Kwak, Jun Seong Ahn
  • Patent number: 9761870
    Abstract: A lithium ion battery includes at least one cathode electrode, at least one anode electrode, and an electrolyte. The cathode electrode includes at least one first carbon nanotube paper and at least one cathode electrode plate. The cathode electrode plate locates on a surface of the at least one first carbon nanotube paper, and includes a plurality of stacked first carbon nanotube films. A cathode active material is dispersed in the plurality of first carbon nanotube films. An anode electrode includes at least one first second carbon nanotube paper and at least one first anode electrode plate. The anode electrode plate is located on a surface of the at least one first second carbon nanotube paper, and includes a plurality of stacked second carbon nanotube films. An anode active material is dispersed in the plurality of second carbon nanotube films.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: September 12, 2017
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Wu, Heng-Cai Wu, Shu Luo, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 9450247
    Abstract: A preparation method of an oligomer-polymer is provided. A maleimide is reacted with a barbituric acid to form a first oligomer-polymer. The first oligomer-polymer is then reacted with a phenylsiloxane oligomer to form a second oligomer-polymer. The phenylsiloxane oligomer is a compound represented by formula 1: Ph-Si(OH)xOy ??formula 1, wherein x is 0.65 to 2.82 and y is 0.09 to 1.17.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: September 20, 2016
    Assignees: National Taiwan University of Science and Technology, Industrial Technology Research Institute
    Inventors: Fu-Ming Wang, Bing-Joe Hwang, Chorng-Shyan Chern, Jung-Mu Hsu, Wen-Han Li
  • Patent number: 9159498
    Abstract: The invention relates to processes for the preparation of electrode compositions, especially those intended for use in supercapacitors. A process is provided for preparing lithium sulphite comprising the steps of:—a) introducing H2SO3 (aq) into a reaction vessel; b) reacting the H2SO3 (aq) with an aqueous suspension of Li2CO3 in the vessel to form an aqueous solution of Li2—CO3; and c) evaporating the solution to recover Li2CO3(s), wherein at least steps a) and b) are conducted under an inert atmosphere. Preferably, in step b) H2SO3 (aq) and Li2CO3 (aq) are reacted with each other in substantially equimolar amounts. There is also provided a process for forming an electrode material comprising a complexing step of causing lithium sulphite to form SO3 complexes at active N sites of a nitrogen-carbon structure, in the presence of a selected amount of a sink that absorbs the liberated lithium, so as to form the N:SO3 complexed electrode material.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: October 13, 2015
    Assignee: QinetiQ Limited
    Inventor: Emmanuel Imasuen Eweka
  • Patent number: 9085076
    Abstract: A portable power tool comprises an electric motor, actuator, or light-emitting hardware and a rechargeable power source connected to the electric motor, actuator, or light-emitting hardware, wherein the power source contains at least a surface-mediated cell (SMC). The power tools include, but are not limited to, impact driver, air compressor, alligator shear, angle grinder, band saw, belt sander, biscuit joiner, ceramic tile cutter tile saw, chainsaw, circular saw, concrete saw, cold saw, crusher, diamond blade, diamond tools, disc sander, drill, floor sander, grinding machine, heat gun, impact wrench, jackhammer, jointer, jigsaw, lathe, miter saw, nail gun, needle scaler, torque wrench, powder-actuated tools, power wrench, radial arm saw, random orbital sander, reciprocating saw, rotary reciprocating saw, rotary tool, sabre saw, sander, scroll saw, steel cut off saw, table saw, thickness planer, trimmer, wall chaser, wood router, or flashlight.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 21, 2015
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Guorong Chen, Wei Xiong, Bor Z. Jang, Yanbo Wang, Qing Fang
  • Patent number: 9059478
    Abstract: To provide a lithium-ion secondary battery having higher discharge capacity and higher energy density and a manufacturing method thereof. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided over the positive electrode current collector. In the positive electrode active material layer, graphenes and lithium-containing composite oxides are alternately provided. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Tomoya Futamura, Tamae Moriwaka
  • Publication number: 20150132641
    Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 14, 2015
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Publication number: 20150125745
    Abstract: A secondary battery negative electrode including a current collector, a negative electrode active material layer, and a porous membrane, wherein the negative electrode active material layer contains a negative electrode active material and a particulate negative electrode polymer, the porous membrane contains non-conductive particles and a porous membrane polymer that is a non-particulate cross-linked polymer, and the non-conductive particles are particles of a polymer that contains 50% by weight or more of a structural unit formed by polymerization of a (meth)acrylate, the polymer having a softening starting point or decomposition point of 175° C. or higher.
    Type: Application
    Filed: May 29, 2013
    Publication date: May 7, 2015
    Applicant: ZEON CORPORATION
    Inventor: Takuya Kaneda
  • Publication number: 20150118553
    Abstract: Current collector, an electrode structure, a non-aqueous electrolyte battery, and an electrical storage device having superior shut down function are provided. According to the present invention, a current collector having a resin layer on at least one side of a conductive substrate is provided. Here, thermoplastic resin particles substantially free of a conductive agent are dispersed in a thermosetting resin base material containing the conductive agent to structure the resin layer; a value of mass ratio given by (thermoplastic resin particles)/(conductive agent) is 0.3 to 1.5; and a value given by (average thickness of conductive agent)/(average thickness of thermoplastic resin particles) is 0.3 to 4.0.
    Type: Application
    Filed: May 10, 2013
    Publication date: April 30, 2015
    Inventors: Osamu Kato, Sohei Saito, Yukiou Honkawa, Mitsuyuki Wasamoto, Tsugio Kataoka, Satoshi Yamabe
  • Publication number: 20150086869
    Abstract: A lithium-ion battery, comprises an anode plate, a cathode plate, a separator and electrolyte, wherein the separator is arranged between the anode plate and the cathode plate. The anode plate comprises an anode current collector and an anode active material layer. The anode current collector is provided with an anode coating area and an anode blank area, and the anode active material layer is coated on the anode coating area. The cathode plate comprises a cathode current collector and a cathode active material layer. The cathode current collector is provided with a cathode coating area and a cathode blank area, and the cathode active material layer is coated on the cathode coating area. When both the anode blank area and the cathode blank area are coated with a polymer layer, the two polymer layers are mutually contacted.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 26, 2015
    Applicant: Ningde Amperex Technology Limited
    Inventors: Xiaomei WANG, Chenghua FU, Changlong HAN, Chunbo CHU
  • Publication number: 20150079468
    Abstract: A battery including a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has a coat on an anode active material layer provided on an anode current collector. The coat contains a fluorine resin. A terminal of the fluorine resin is a hydroxyl group or the like capable of being fixed (for example, being absorbed or bound) on the surface of the anode active material layer (anode active material).
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: Takakazu Hirose, Hideki Nakai, Kenichi Kawase, Hiroyuki Yamaguchi, Tadahiko Kubota
  • Publication number: 20150079467
    Abstract: Disclosed are an anode for secondary batteries and a secondary battery including the same. The anode includes an anode mixture including an anode active material, coated on a current collector, wherein the anode active material includes lithium titanium oxide (LTO) particles provided on surfaces thereof with a cross-linked polymer coating layer, wherein the LTO particles with the cross-linked polymer coating layer formed thereon retain a porous structure formed therebetween, and a cross-linked polymer of the coating layer is a phosphate-based compound.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Kyoung-Ho Ahn, Chul-Haeng Lee, Doo-Kyung Yang, Min-Jung Kim, Jung-Hoon Lee, Yi-Jin Jung
  • Publication number: 20150072232
    Abstract: In a lithium-ion secondary battery (100), positive electrode active material particles (610) each include a shell portion (612) made of a layered lithium-transition metal oxide, a hollow portion (614) formed inside the shell portion (612), and a through-hole (616) penetrating through the shell portion (612). A positive electrode active material layer (223) has a density A of 1.80 g/cm3?A?2.35 g/cm3, and a negative electrode active material layer (243) has a density B of 0.95 g/cm3?B?1.25 g/cm3.
    Type: Application
    Filed: March 30, 2012
    Publication date: March 12, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroki Nagai
  • Patent number: 8968928
    Abstract: Primer arrangements that facilitate electrical conduction and adhesive connection between an electroactive material and a current collector are presented. In some embodiments, primer arrangements described herein include first and second primer layers. The first primer layer may be designed to provide good adhesion to a conductive support. In one particular embodiment, the first primer layer comprises a substantially uncrosslinked polymer having hydroxyl functional groups, e.g., polyvinyl alcohol. The materials used to form the second primer layer may be chosen such that the second primer layer adheres well to both the first primer layer and an electroactive layer. In certain embodiments including combinations of first and second primer layers, one or both of the first and second primer layers comprises less than 30% by weight of a crosslinked polymeric material. A primer including only a single layer of polymeric material is also provided.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: March 3, 2015
    Assignee: Sion Power Corporation
    Inventors: Yongzhong Wang, Zhesheng Xu, John D. Affinito, Charles D. Skaggs
  • Patent number: 8961833
    Abstract: A lithium/fluorinated carbon (Li/CFx) battery having a composite cathode including an electroactive cathode material, a non-electroactive additive, a conductive agent, and a binder. The electroactive cathode material is a single fluorinated carbon having a general formula of CFx, whereby x is an averaged value ranging from about 0.5 to about 1.2. The non-electroactive additive is at least one or a mixture of two or more oxides selected from the group comprising Mg, B, Al, Si, Cu, Zn, Y, Ti, Zr, Fe, Co, or Ni. The conductive agent is selected from the group comprising carbon, metals, and mixtures thereof. Finally, the binder is an amorphous polymer selected from the group comprising fluorinated polymers, ethylene-propylene-diene (EPDM) rubbers, styrene butadiene rubbers (SBR), poly (acrylonitrile-methyl methacrylate), carboxymethyl celluloses (CMC), and polyvinyl alcohol (PVA).
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 24, 2015
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Shengshui Zhang, Donald L. Foster, Jeffery Wolfenstine, Jeffery A. Read
  • Publication number: 20150044516
    Abstract: The present invention, in part, relates to a carbon black having a) a nitrogen BET surface area (BET) of from about 600 m2/g to about 2100 m2/g, b) a CDBP value in mL/100 g of from about (?2.8+(b*BET)) to about (108+(b*BET)), where b is 0.087 and BET is expressed in m2/g, and c) an apparent density (p, g/cm3) of at least about 0.820+q*BET, where q=?2.5×10?4, as determined at a compressive force (P) of 200 kgf/cm2 on dry carbon black powder. Energy storage devices, such as electrochemical double layer capacitors (EDLC's), containing the carbon black are also disclosed. Methods for making the carbon blacks and EDLC's made with them are also provided.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventors: Agathagelos Kyrlidis, Raymond M. Sawka, Geoffrey D. Moeser, Pavel A. Kossyrev, Ned J. Hardman
  • Publication number: 20150037670
    Abstract: A metal-oxygen cell capable of improving cycle performance is provided. The metal-oxygen cell 1 includes a positive electrode 2 that contains an oxygen storage material and uses oxygen as an active material, a negative electrode 3 that uses a metal as an active material, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3 and containing an electrolyte solution, effecting cell reactions of the positive electrode 2 on a surface of the oxygen storage material. The positive electrode 2 contains a conductive polymer that is capable of suppressing permeation of oxygen and conducting metal ions and covers at least a part of the surface of the oxygen storage material.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 5, 2015
    Inventors: Akihisa Tanaka, Kiyoshi Tanaami, Bunichi Saito, Takuya Taniuchi, Hiroshi Sakai, Satoshi Nakada, Mao Hori, Tomohiro Kinoshita
  • Patent number: 8940436
    Abstract: Provided is a sulfur-modified polyacrylonitrile manufacturing method that is characterized in that a starting base powder that comprises sulfur powder and polyacrylonitrile powder is mixed and the mixture is heated in a non-oxidizing environment while outflow of sulfur vapor is prevented. Also provided are a cathode for lithium batteries that uses, as the active substance, the sulfur-modified polyacrylonitrile manufactured with the method, and a lithium secondary battery that includes the cathode as a component element. This enables the practical use of an inexpensive sulfur-based material as the cathode material for lithium secondary batteries, and in particular, a sulfur-based cathode material that enables higher output and has excellent cycle life characteristics, as well as other characteristics, and secondary lithium batteries using the same can be obtained.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: January 27, 2015
    Assignees: National Institute of Advanced Industrial Science and Technology, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takuhiro Miyuki, Tetsuo Sakai, Junichi Niwa, Hitotoshi Murase
  • Publication number: 20150024268
    Abstract: There is a composition comprising 1 to 17.5 wt. % ionomer composition comprising hydrocarbon ionomer and 50 to 99 wt. % carbon-sulfur composite made from carbon powder having a surface area of about 50 to 4,000 square meters per gram and a pore volume of about 0.5 to 6 cubic centimeters per gram. The composite has 5 to 95 wt. % sulfur compound. There is also a layering comprising a plurality of coatings. Respective coatings in the plurality of coatings comprise respective compositions. The respective coatings comprise at least one ionomer composition comprising hydrocarbon ionomer and at least one carbon-sulfur composite of carbon powder and sulfur compound. There are also electrodes comprising the composition or layering and methods of using such in cells.
    Type: Application
    Filed: February 25, 2013
    Publication date: January 22, 2015
    Inventors: Samuel David Arthur, Kostantinos Kourtakis, Brent Wise
  • Publication number: 20150017529
    Abstract: Disclosed is a cathode active material for secondary batteries in which a carboxymethyl cellulose derivative is coated on surfaces of particles of a lithium transition metal oxide having the formula LixMyO2 where M: NiaMnbCoc wherein 0?a?0.9, 0?b?0.9, 0?c?0.5, and 0.85?a+b+c?1.05 and x+y=2, wherein 0.95?x?1.15.
    Type: Application
    Filed: December 17, 2012
    Publication date: January 15, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Chang-Wan Koo, Moon Kyu Cho, Joon Sung Bae, Jae Bin Chung
  • Publication number: 20150017530
    Abstract: The present invention relates to an electrode for a secondary battery including an electrode current collector, an electrode active material combination layer formed on one or both sides of the electrode current collector, and a polyurethane-based coating layer formed on the electrode active material combination layer, and a lithium secondary battery including the same.
    Type: Application
    Filed: September 10, 2014
    Publication date: January 15, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Min Jung Kim, Jung Hoon Lee, Yi Jin Jung, Doo Kyung Yang, Chul Haeng Lee
  • Patent number: 8932755
    Abstract: The invention relates to performance improvements in lead accumulators and lead-acid batteries by admixing so-called expanders or spreading materials to the active negative materials. Succinates are proposed as a new synthetic and consequently chemically clearly defined spreading means that can be used in place of lignin sulphonates, particularly iminodisuccinates or succinyl groups or oligomers containing iminosuccinyl groups or polymer compounds, individually or in any mixtures.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: January 13, 2015
    Assignee: Johnson Controls Autobatterie GmbH & Co. KGaA
    Inventor: Frank Johns
  • Publication number: 20150004487
    Abstract: Disclosed is an electrode for secondary batteries including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector wherein a conductive material is coated to a thickness of 1 to 80 ?m on the current collector and the electrode mixture is coated on a coating layer of the conductive material so as to improve electrical conductivity.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Min Hee Lee, Tae Jin Park, Daehong Kim
  • Publication number: 20150004448
    Abstract: In the non-aqueous electrolyte secondary battery provided by the present invention, at or near the positive electrode constituting the non-aqueous electrolyte secondary battery, overcharge-reactive multimers including dimers to higher-order multimers formed by polymerization of an overcharge-reactive compound are present in a larger amount by mole than the overcharge-reactive compound remaining unpolymerized.
    Type: Application
    Filed: January 25, 2012
    Publication date: January 1, 2015
    Inventors: Masahiro Morita, Yutaka Oyama, Yukihiro Okada
  • Publication number: 20150004500
    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: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Keigo Hoshina, Wen Zhang, Yasuhiro Harada, Hiroki Inagaki, Norio Takami
  • Patent number: 8911905
    Abstract: An anode of a lithium battery includes a composite film, the composite film includes a carbon nanotube film structure and a plurality of nanoscale tin oxide particles dispersed therein. A lithium battery includes at least a cathode, an electrolyte, and the anode mentioned above. A charge/discharge capacity of the lithium battery using the anode can be improved.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: December 16, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Hao-Xu Zhang, Kai-Li Jiang, Shou-Shan Fan
  • Publication number: 20140356708
    Abstract: The present invention is to provide a negative electrode active material for nonaqueous secondary batteries, which prevents increase in negative electrode resistance and improves initial charge/discharge efficiency and the effect of preventing gas generation and which is excellent in cycle characteristics. The present invention relates to a negative electrode active material for nonaqueous secondary batteries, which comprises an active material (A) capable of occluding and releasing lithium ions and an organic compound (B), wherein the organic compound (B) has a basic group and a lithium ion-coordinating group, and has a specific structure (S).
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuuya ARIKAWA, Teruyuki Okayasu, Rie Fujita, Aoi Sakai, Naomi Fujimori, Nobuhiko Ueno, Naoto Maru
  • Publication number: 20140356709
    Abstract: The present invention is to provide a negative electrode active material for nonaqueous secondary batteries, which is useful in production of nonaqueous secondary batteries that have low initial irreversible capacity and little gas generation due to decomposition of nonaqueous electrolytic solution, and have excellent charge/discharge cycle stability. The present invention relates to a negative electrode active material for nonaqueous secondary batteries, which comprises an active material (A) capable of occluding and releasing lithium ions and an organic compound (B), wherein the organic compound (B) is hardly soluble in a nonaqueous electrolytic solution, has a ?-conjugated structure, and has an electric conductivity at 25° C. of 0.1 S/cm or less.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yuuya ARIKAWA, Teruyuki OKAYASU, Rie FUJITA, Aoi SAKAI, Naomi FUJIMORI, Nobuhiko UENO, Naoto MARU
  • Publication number: 20140329143
    Abstract: In a lithium ion battery, one or more chelating agents may be attached to a microporous polymer separator for placement between a negative electrode and a positive electrode or to a polymer binder material used to construct the negative electrode, the positive electrode, or both. The chelating agents may comprise, for example, at least one of a crown ether, a crown ether, a podand, a lariat ether, a calixarene, a calixcrown, or mixtures thereof. The chelating agents can help improve the useful life of the lithium ion battery by complexing with unwanted metal cations that may become present in the battery's electrolyte solution while, at the same time, not significantly interfering with the movement of lithium ions between the negative and positive electrodes.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Ion C. Halalay, Stephen J. Harris, Timothy J. Fuller
  • Patent number: 8859143
    Abstract: A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from (A) non-Li alkali metals; (B) alkaline-earth metals; (C) transition metals; (D) other metals such as aluminum (Al); or (E) a combination thereof; and wherein at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with said electrolyte, and wherein the operation of the battery device does not involve the introduction of oxygen from outside the device and does not involve the formation of a metal oxide, metal sulfide, metal selenide, metal telluride, metal hydroxide, or metal-halogen compound.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: October 14, 2014
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, ChenGuang Liu, David Neff, Bor Z. Jang, Zhenning Yu
  • Publication number: 20140292281
    Abstract: A predoping material is used for an alkali metal ion electric storage device and is represented by Formula (1): R?SM)n??(I) where M represents lithium or sodium; n represents an integer of 2 to 6; and R represents an aliphatic hydrocarbon, optionally substituted aromatic hydrocarbon, or optionally substituted heterocycle having 1 to 10 carbon atoms).
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasuyuki KIYA, Takahito SAKURABA, Satoru KUDO, Ken BABA
  • Publication number: 20140272572
    Abstract: In an aspect, an electrode active material for a lithium secondary battery, the electrode active material including a silicon-based alloy and a coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy are provided.
    Type: Application
    Filed: January 9, 2014
    Publication date: September 18, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hee-Young Chu, Young-Ugk Kim, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Duk-Hyoung Yoon, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich
  • Publication number: 20140272571
    Abstract: A single or multi-component polymer coating is applied to components used in fabrication of electrochemical cells to protect the cells from damages that can result in cell imbalance or cell performance reduction. The polymer coating is electrically conductive under normal operating conditions but, when operated at low voltages, functions as an insulative material that increases the electrical resistance of the cell components. This increased electrical resistance improves cell safety by minimizing short-circuit current flow and reducing heating rate in the cell components.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: PHYSICAL SCIENCES, INC.
  • Publication number: 20140255795
    Abstract: In one embodiment, the present disclosure provides a sulfur-hydroxylated graphene nanocomposite including at least one graphene sheet with a surface and a plurality of amorphous sulfur nanoparticles homogeneously distributed on the surface. The nanocomposite substantially lacks sulfur microparticles. In other embodiments, the disclosure provides a cathode and a battery containing the nanocomposite. In still another embodiment, the disclosure provides a method of making a sulfur-hydroxylated graphene nanocomposite by exposing a hydroxylated graphene to a sulfur-containing solution for a time sufficient to allow formation of homogeneously distributed sulfur nanoparticles on a surface of the hydroxylated graphene.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 11, 2014
    Inventors: Arumugam Manthiram, Chenxi Zu
  • Publication number: 20140255781
    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, wherein n is 1 to 20 and a is 0 or 1, or compound CnH(2n), wherein n is 2 to 6, wherein 0?a?1.6, 0?b?2, 0?c?2, 0?d?2, b, c, and d are not simultaneously equal to 0, e ranges from 1 to 4, 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 Ti, V, Si, B, F, S, and P, and at least one of the M, M?, and N comprises Ni, Co, Mn, Mo, Cu, or Fe.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: 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: 8828604
    Abstract: A battery capable of ensuring storage characteristics and overcharge characteristics is provided. The battery comprising a cathode, an anode, and an electrolytic solution. The cathode has a cathode current collector and a cathode active material layer provided on the cathode current collector. The cathode active material layer includes an aromatic compound having three or more benzene rings. The electrolytic solution includes at least one of an ester carbonate containing a halogen and an ester carbonate containing an unsaturated bond.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 9, 2014
    Assignee: Sony Corporation
    Inventors: Hiroshi Horiuchi, Takehiko Tanaka, Masanori Soma
  • Patent number: 8802289
    Abstract: Disclosed is a composition for electrode comprising (i) a positive electrode active material comprising an iron compound and carbon, and (ii) a copolymer (P) prepared by copolymerization of acrylic acid esters and/or methacrylic acid esters, with an ?,?-unsaturated nitrile compound. Also disclosed is an electrode comprised of an active material layer made of the composition for electrode, and a collector. This electrode can be produced by mixing the positive electrode active material, the copolymer (P), a solvent and an optional thickener, by a mixer to prepare an electrode composition slurry with solid content of 40-90% by weight, coating a collector with the electrode composition slurry, and then, removing the solvent from the thus-formed coating. Further disclosed a battery provided with the electrode.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: August 12, 2014
    Assignee: Zeon Corporation
    Inventors: Mayumi Fukumine, Mitsuhiro Mori, Masahiro Yamakawa, Hidekazu Mori
  • Publication number: 20140197801
    Abstract: A silicon-based electrode includes a silicon layer on a substrate, an electrically conductive layer overlying a top surface of the silicon layer, an optional polymer layer overlying the top surface of the electrically conducting layer, and a plurality of channels extending through the electrically conductive layer and the silicon layer to the substrate. The channels define sidewalls in the silicon layer. The electrically conductive layer and the optional polymer layer act to inhibit lithium ion intercalation through the top surface of the silicon layer during charging of a lithium-ion cell, and the lithium ion intercalation into the silicon layer occurs through the sidewalls that are defined by the channels.
    Type: Application
    Filed: May 17, 2012
    Publication date: July 17, 2014
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Ralph G. Nuzzo, Jason L. Goldman, Michael W. Cason
  • Patent number: 8771878
    Abstract: A positive electrode for a rechargeable lithium battery including a current collector and a positive active material layer disposed on the current collector, a method of manufacturing the positive electrode, and a rechargeable lithium battery including the positive electrode. Here, the positive active material layer includes a positive active material and a coating layer on the surface of the positive active material, wherein the coating layer is formed of a coating layer composition including carbon nano particles, polyvinylpyrrolidone, and polyvinylidene fluoride.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: July 8, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Da-Woon Han, Kyeu-Yoon Sheem, Eui-Hwan Song
  • Patent number: 8758936
    Abstract: A thin film structure, method of producing it and the use thereof. The thin film structure comprises a substrate with a thin conductive layer containing an oxidizing enzyme mixed with an electron transfer mediator. The thin layer is protected against wetting to allow for its storage in dry conditions and further being sufficiently porous to allow for immediate activation of the oxidizing enzyme when contacted with an aqueous solution. The thin film can be used as a cathode in electrochemical fuel cells.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: June 24, 2014
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Matti Valkiainen, Harry Boer, Anu Koivula, Maria Smolander, Pia Qvintus-Leino, Kirsi Immonen, Liisa Viikari
  • Publication number: 20140154572
    Abstract: Particles of cathodic materials are coated with polymer to prevent direct contact between the particles and the surrounding electrolyte. The polymers are held in place either by a) growing the polymers from initiators covalently bound to the particle, b) attachment of the already-formed polymers by covalently linking to functional groups attached to the particle, or c) electrostatic interactions resulting from incorporation of cationic or anionic groups in the polymer chain. Carbon or ceramic coatings may first be formed on the surfaces of the particles before the particles are coated with polymer. The polymer coating is both electronically and ionically conductive.
    Type: Application
    Filed: May 7, 2013
    Publication date: June 5, 2014
    Inventors: MOHIT SINGH, HANY BASAM EITOUNI, RUSSELL CLAYTON PRATT, SCOTT ALLEN MULLIN, XIAO-LIANG WANG
  • Publication number: 20140127577
    Abstract: Electrode structures and electrochemical cells are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. The polymer layer may be formed from the copolymerization of an olefinic monomer comprising at least one electron withdrawing group and an olefinic comonomer comprising at least one electron donating group. Methods for forming polymer layers are also provided.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 8, 2014
    Applicants: BASF SE, Sion Power Corporation
    Inventors: Sven Fleischmann, Tobias Petsch, Andrea Misske, Ruediger Schmidt, Veronika G. Viner, Bala Sankaran