Having Active Material With Organic Component Patents (Class 429/212)
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Patent number: 10777782Abstract: The invention relates to devices incorporating thin, lightweight electrochemical cells and their method of manufacture, whereby a thin flexible pouch-type cell (1) comprises at least one pair of overlying electrode layers separated from one another by an intermediate electrolyte layer (13), the cell exterior being defined by first and second laminated sheets (3, 9) sealed together, wherein each laminated sheet (3, 9) has an outermost layer (3a, 9a) forming a respective external face of the cell (1) and a coextensive, innermost, conductive layer (3b, 9b) that acts as a current collector layer (3b, 9b) and which supports an electrode layer (5, 11), although the conductive layer may also itself act as the active electrode layer.Type: GrantFiled: January 21, 2011Date of Patent: September 15, 2020Assignee: QinetiQ LimitedInventors: Paul Barrie Adams, Fazlil Ahmode Coowar, Gary Owen Mepsted, Christopher Douglas James Spooner, Girts Vitins
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Patent number: 10763505Abstract: A method for manufacturing a positive active material is provided. The method includes forming a positive active material precursor including nickel, mixing and firing the positive active material precursor and lithium salt to form a preliminary positive active material particle, forming a coating material including fluorine on the preliminary positive active material particle by dry-mixing the preliminary positive active material particle with a coating source including fluorine, and manufacturing a positive active material particle by thermally treating the preliminary positive active material particle on which the coating material is formed.Type: GrantFiled: October 26, 2018Date of Patent: September 1, 2020Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Yang-Kook Sun, Un Hyuck Kim
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Patent number: 10763512Abstract: An electrode for a lithium battery constructed of a metal foil current collector, a coating of a pH sensitive polyelectrolyte polymer directly on the metal foil current collector; and a polyelectrolyte polymer nanomembrane comprising alternating layers of oppositely charged polyelectrolyte polymer wherein each succeeding polyelectrolyte layer has excess charge over the previous layer is provided. The pH sensitive polymer may be poly(allylamine hydrochloride) (PAH), poly(dimethyldiallyl ammonium chloride) (PDAD), poly(vinyl pyridine) (PPy), polyethyleneimine (PEI), polyacrylic acid (PAA), polymethacrylic acid (PMA) or poly(styrene sulfonic acid-maleic acid, sodium salt) (PSSM3:1).Type: GrantFiled: August 28, 2015Date of Patent: September 1, 2020Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Claudiu B. Bucur, John Muldoon, Adrian Lita
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Patent number: 10756339Abstract: A positive active material, a method of preparing the positive active material, a positive electrode including the positive active material, and a lithium battery including the positive active material are disclosed. The positive active material includes a core and a coating layer on the core. The coating layer includes a sulfur component. When a binding energy peak of the sulfur is measured by X-ray photoelectron spectroscopy (XPS), the binding energy peak is observed at about 165 eV to about 168 eV, and the stability of the positive active material may be improved due to the coating layer. Accordingly, the lifespan properties of a lithium battery including the positive active material may be improved.Type: GrantFiled: January 15, 2015Date of Patent: August 25, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Won Choi, Sang-In Park, Jae-Hong Lim, Yong-Chan You
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Patent number: 10734635Abstract: Provided is graphene-embraced particulate for use as a lithium-ion battery anode active material, wherein the particulate comprises primary particle(s) of an anode active material and multiple sheets of a first graphene material overlapped together to embrace or encapsulate the primary particle(s) and wherein a single or a plurality of graphene-encapsulated primary particles, along with an optional conductive additive, are further embraced or encapsulated by multiple sheets of a second graphene material, wherein the first graphene and the second graphene material is each in an amount from 0.01% to 20% by weight and the optional conductive additive is in an amount from 0% to 50% by weight, all based on the total weight of the particulate. Also provided are an anode and a battery comprising multiple graphene-embraced particulates.Type: GrantFiled: June 1, 2018Date of Patent: August 4, 2020Assignee: Global Graphene Group, Inc.Inventors: Aruna Zhamu, Hao-Hsun Chang, Yu-Sheng Su, Bor Z. Jang
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Patent number: 10727477Abstract: The present invention provides a conductive material dispersed liquid, including: a conductive material which includes bundle-type carbon nanotubes; a dispersant; a dispersion medium, where a phase angle is in a range of 3° to 18° when measured by a rheometer at a frequency of 1 Hz; and a lithium secondary battery manufactured using the conductive material dispersed liquid. The conductive material dispersed liquid has high solid-like properties, and thus allows the formation of an electrode active material layer having a uniform thickness with no concern for collapse or occurrence of cracks during manufacture of an electrode, and thereby can improve the performance characteristics, particularly capacity characteristics, of a battery.Type: GrantFiled: October 28, 2016Date of Patent: July 28, 2020Assignee: LG Chem, Ltd.Inventors: Ye Lin Kim, Ki Yeon Jo, Jung Keun Yoo, Je Young Kim, Sang Hoon Choy, Jong Heon Seol
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Patent number: 10720636Abstract: A sintered electrode having a large cathode capacity is obtained. A method for producing a sintered electrode which uses a lithium containing composite oxide as a cathode active material, and lithium lanthanum zirconate as an oxide solid electrolyte comprises: mixing at least the lithium containing composite oxide and a hydroxide, to obtain a cathode mixture; mixing at least the lithium lanthanum zirconate and a lithium salt that has a melting point lower than the lithium lanthanum zirconate, to obtain a solid electrolyte mixture; laminating the cathode mixture and the solid electrolyte mixture, to obtain a laminate; and heating the laminate, to sinter at least the solid electrolyte mixture.Type: GrantFiled: February 12, 2018Date of Patent: July 21, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masatsugu Kawakami, Shingo Ohta
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Patent number: 10700346Abstract: The present invention relates to a negative electrode and a method for manufacturing the same. Specifically, the present invention provides a negative electrode comprising a current collector, a first active material layer formed on the current collector, and a second active material layer formed on the first active material layer, wherein the first active material layer comprises carbon-based negative electrode active material particles, and the second active material layer comprises silicon nitride. The negative electrode according to the present invention comprises a second active material layer comprising silicon nitride on a first active material layer. Nitrogen of the silicon nitride may react with lithium ions to form lithium nitride.Type: GrantFiled: March 24, 2017Date of Patent: June 30, 2020Assignee: LG Chem, Ltd.Inventors: Jin Ho Yang, Song Taek Oh, Young Geun Choi
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Patent number: 10693141Abstract: A current collector assembly, such as for a bipolar lead acid battery, can include an electrically-conductive silicon substrate and a frame bonded to the electrically-conductive silicon substrate. The substrate can be treated or modified, such as to include one or more thin films which render a surface substrate electrically conductive and electrochemically stable in the presence of a lead acid electrolyte chemistry. An interface between the frame and the electrically-conductive silicon substrate can be hermetically sealed. In an example, the frame can provide an edge-seal ring configuration. In an example, a casing assembly can include a spacer bonded to the substrate, along with a casing segment and a thermally-conductive rib, the spacer isolating the thermally-conductive rib from the electrically-conductive silicon substrate electrically.Type: GrantFiled: July 14, 2016Date of Patent: June 23, 2020Assignee: Gridtential Energy, Inc.Inventors: Daniel Jason Moomaw, Collin Kwok Leung Mui, Esteban M. Hinojosa
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Patent number: 10680289Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.Type: GrantFiled: April 6, 2017Date of Patent: June 9, 2020Assignee: Storedot Ltd.Inventors: Doron Burshtain, Nir Kedem, Eran Sella, Daniel Aronov
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Patent number: 10622617Abstract: In the present invention is provided a positive electrode active material for a secondary battery, wherein the positive electrode active material includes a core including a lithium composite metal oxide, and a surface treatment layer positioned on the surface of the core, and the surface treatment layer includes a porous coordination polymer in which a central metal ion is coordinate-bonded with an organic ligand such that high electrode density may be exhibited when an electrode is manufactured, and consequently, battery properties may be significantly enhanced. Also provided are a positive electrode, which is for a secondary battery and includes the positive electrode active material, and a secondary battery.Type: GrantFiled: November 24, 2016Date of Patent: April 14, 2020Assignee: LG Chem, Ltd.Inventors: Chi Ho Jo, Sin Young Park, Wang Mo Jung, Byung Chun Park, So Ra Baek
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Patent number: 10601029Abstract: It is an object to provide a positive electrode for nonaqueous electrolyte secondary batteries in which a decrease in the initial charge capacity is suppressed even when a positive electrode active material exposed to the air is used. The positive electrode for a nonaqueous electrolyte secondary battery contains a lithium transition metal oxide and is formed by mixing the lithium transition metal oxide, tungsten oxide, and a carbonate compound. The tungsten oxide is present on at least a part of a surface of the lithium transition metal oxide, and the mixed carbonate compound is present on a part of a surface of the tungsten oxide.Type: GrantFiled: August 25, 2015Date of Patent: March 24, 2020Assignee: SANYO Electric Co., Ltd.Inventors: Kenji Kibune, Fumiharu Niina
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Patent number: 10593439Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes an organopolysiloxane and a fluorine-containing degradation agent.Type: GrantFiled: September 25, 2017Date of Patent: March 17, 2020Assignee: DUPONT ELECTRONICS, INC.Inventors: Hee Hyun Lee, Viacheslav V Diev, Eric Maurice Smith, Kalyan Venkata Chalapathi Rapolu
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Patent number: 10535474Abstract: A porous coordination polymer-ionic liquid composite according to the present invention includes an insulating structure composed of a porous coordination polymer, and an ionic liquid retained inside pores of the porous coordination polymer. The porous coordination polymer preferably has a main chain containing a typical metal element.Type: GrantFiled: March 19, 2013Date of Patent: January 14, 2020Assignee: KYOTO UNIVERSITYInventors: Hiroshi Kitagawa, Teppei Yamada, Kazuyuki Fujie
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Patent number: 10516187Abstract: There is provided a nonaqueous electrolyte solution for the sodium secondary battery including a sodium salt, a compound having a sulfur-oxygen bond, and a nonaqueous solvent in which an amount of the compound having the sulfur-oxygen bond is in a rage of 0.05% by weight or more and 10% by weight or less with respect to the nonaqueous electrolyte solution. According to the present invention, the nonaqueous electrolyte solution for the sodium secondary battery and the sodium secondary battery which have excellent charge-discharge cycle characteristics can be provided and is useful industrially.Type: GrantFiled: March 18, 2016Date of Patent: December 24, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toru Onodera, Hidenaka Tanaka, Takitaro Yamaguchi
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Patent number: 10511018Abstract: A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles.Type: GrantFiled: September 8, 2015Date of Patent: December 17, 2019Assignee: Physical Sciences, Inc.Inventor: Christopher M. Lang
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Patent number: 10497975Abstract: Disclosed is a lithium ion battery non-aqueous electrolyte and a lithium ion battery, in which the electrolyte comprises: a non-aqueous organic solvent, a lithium salt and an additive, said additive comprises: a compound represented by the structural formula 1 and a compound represented by the structural formula 2, in which R is an alkyl selected from an alkyl group having 1 to 4 carbon atoms, the ratio of the content of the compound represented by the structural formula 1 to the total mass of the lithium ion battery non-aqueous electrolyte is 0.1% to 2%, and the ratio of the content of the compound represented by the structural formula 2 to the total mass of the lithium ion battery non-aqueous electrolyte is less than 0.5%.Type: GrantFiled: November 24, 2015Date of Patent: December 3, 2019Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.Inventors: Qiao Shi, Shiguang Hu, Qun Chen, Qi Huang, Xue Zhou
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Patent number: 10468670Abstract: The present invention concerns a positive electrode including a composite material including sulfur and carbon as an active material and its method of manufacture, a lithium-sulfur battery including such a positive electrode and its method of manufacture.Type: GrantFiled: March 9, 2015Date of Patent: November 5, 2019Assignees: BLUE SOLUTIONS, UNIVERSITE DE NANTES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Margaud Lecuyer, Marc Deschamps, Joël Gaubicher, Bernard Lestriez, Dominique Guyomard
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Patent number: 10427106Abstract: Disclosed herein are porous asymmetric silicon membranes. The membranes are characterized by high structural stability, and as such are useful as anode components in lithium ion batteries.Type: GrantFiled: May 2, 2017Date of Patent: October 1, 2019Assignee: Georgia Southern University Research and Service FoundationInventors: Ji Wu, Hao Chen, Ian Byrd
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Patent number: 10320041Abstract: A zinc-air battery includes an air cathode, a zinc anode, and an electrolyte, wherein the electrolyte includes an amphoteric fluorosurfactant.Type: GrantFiled: October 14, 2015Date of Patent: June 11, 2019Assignee: Energizer Brands, LLCInventors: Abhishek Guha, Marc Syvertsen, Tony M. Rubsam
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Patent number: 10283771Abstract: A positive active material includes a compound represented by Chemical Formula 1, and the positive electrode including a positive active material and a rechargeable lithium battery including the same are provided. Li(1.33?0.67x?z)Mn(0.67?0.33x?0.5y)Ni(x?0.5y+z)M(y)O2??[Chemical Formula 1] Definitions of Chemical Formula 1 are the same as in the detailed description.Type: GrantFiled: November 11, 2016Date of Patent: May 7, 2019Assignee: Samsung SDI Co., Ltd.Inventors: Eun-Sung Lee, Jay-Hyok Song, Sol Choi, Do-Hyung Park, Il-Seok Kim
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Patent number: 10222358Abstract: A gas detection sheet wherein a porous coordination polymer represented by formula (1) is supported on a supporter and the air permeability of the gas detection sheet is 0.8 seconds or more and 60 seconds or less. Fex(pz)[Ni1-yMy(CN)4]??(1) (wherein, pz=pyrazine, 0.95?x<1.05, M=Pd or Pt, 0?y<0.15).Type: GrantFiled: March 23, 2017Date of Patent: March 5, 2019Assignee: TDK CORPORATIONInventors: Tomohiko Kato, Takayuki Maruyama, Rie Ihara
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Patent number: 10153484Abstract: Provided are a porous silicon-based anode active material including a core part including silicon (Si) and MxSiy, and a shell part including Si and a plurality of pores on the core part, wherein, in the MxSiy, M is at least one element selected from the group consisting of Group 2A, 3A, and 4A elements and transition metals, 1?x?4, and 1?y?4, and a method of preparing the porous silicon-based anode active material. According to an embodiment of the present invention, capacity characteristics and lifetime characteristic of a lithium secondary battery may be improved by minimizing the volume expansion of an anode active material during charge and discharge.Type: GrantFiled: October 29, 2014Date of Patent: December 11, 2018Assignee: LG Chem, Ltd.Inventors: Yong Ju Lee, Jun Sik Ham, Sung Man Lee, Rae Hwan Jo, Eun Kyung Kim, Je Young Kim, Hong Kyu Park, Jung Woo Yoo, Mi Rim Lee
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Patent number: 10147950Abstract: Composites of silicon and various porous scaffold materials, such as carbon material comprising micro-, meso- and/or macropores, and methods for manufacturing the same are provided. The compositions find utility in various applications, including electrical energy storage electrodes and devices comprising the same.Type: GrantFiled: August 26, 2016Date of Patent: December 4, 2018Assignee: Group 14 Technologies, Inc.Inventors: Avery Sakshaug, Henry R. Costantino, Aaron M. Feaver, Leah A. Thompkins, Katharine Geramita, Benjamin E. Kron, Sarah Fredrick, Farshid Afkhami, Adam Strong
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Patent number: 10141559Abstract: A porous interlayer for a lithium-sulfur battery includes an electronic component and a negatively charged or chargeable lithium ion conducting component. The electronic component is selected from a carbon material, a conductive polymeric material, and combinations thereof. In an example, the porous interlayer may be disposed between a sulfur-based positive electrode and a porous polymer separator in a lithium-sulfur battery. In another example, the porous interlayer may be formed on a surface of a porous polymer separator.Type: GrantFiled: April 5, 2016Date of Patent: November 27, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Qiangfeng Xiao, Mei Cai
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Patent number: 10128511Abstract: The present invention relates to a cathode for a metal-air battery, a method for manufacturing the same, and a metal-air battery including the same. The cathode comprises a needle-shaped core including two or more species of metals selected from the group consisting of nickel, cobalt, manganese, zinc, iron, copper, and chrome, or a cobalt oxide; and a flake-shaped shell including an oxide containing two or more species of metals selected from the group consisting of nickel, cobalt, manganese, zinc, iron, copper, and chrome or a cobalt oxide. As such, the core-shell structure may lead to a reduction in the charge voltage of the metal-air battery as well as the taking of the good capacity characteristics of the transition metal oxide. Further, according to the present invention, the cathode for a metal-air battery may be produced without adding carbon or binder.Type: GrantFiled: December 5, 2014Date of Patent: November 13, 2018Inventors: Kyu-nam Jung, Jong-won Lee, Kyung-hee Shin, Chang-soo Jin, Bum-suk Lee, Myung-seok Jeon, Jae-deok Jeon, Sun-hwa Yeon, Joon-mok Shim, Jung-hoon Yang
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Patent number: 10115963Abstract: A negative electrode active material is provided, which can reduce and suppress ratio of expansion of silicon, provide enhanced conductivity, and realize superior charge/discharge cycle characteristic. The negative electrode material for secondary battery capable of occluding and releasing lithium consists of alloy particles having a silicon phase and a metal phase, and a carbonaceous material, in which crystallite size of the silicon phase is 10 nm or less, and the metal phase includes two or more kinds of metals alloying with silicon but not with lithium, and the carbonaceous material has crystallite size of 30 nm or more, and the carbonaceous material is present on the surface of, or within the alloy particles.Type: GrantFiled: December 10, 2014Date of Patent: October 30, 2018Assignee: LG Chem, Ltd.Inventors: Keiko Matsubara, Yoshiyuki Igarashi
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Patent number: 10074854Abstract: A main object of the present invention is to provide an anode active material capable of enhancing improvement of heat resistance in an all solid secondary battery. The present invention solves the problem by providing an anode active material comprising an active material particle having carbon as a main component, and a coating layer containing LixPOy (2?x?4, 3?y?5) and formed on a surface of the active material particle.Type: GrantFiled: April 8, 2016Date of Patent: September 11, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Matsushita, Satoshi Yoshida, Koichi Sugiura, Hisataka Fujimaki
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Patent number: 10069132Abstract: The present invention provides a method of coating a substrate for a lithium secondary battery with inorganic particles, comprising charging the inorganic particles to form charged inorganic particles; transferring the charged inorganic particles on the substrate for a lithium secondary battery to form a coating layer; and fixing the coating layer with heat and pressure. Such a coating method according to one embodiment of the present invention uses electrostatic force without the addition of a solvent, and therefore, non use of a solvent can result in cost-reducing effects since there is no burden on the handling and storing of the solvent, and since a drying procedure after slurry coating is not needed, it allows for the preparation of a lithium secondary battery in a highly effective and rapid manner.Type: GrantFiled: June 9, 2014Date of Patent: September 4, 2018Assignee: LG Chem, Ltd.Inventors: Joo-Sung Lee, Jong-Hun Kim, Jeong-Min Ha, Bo-Kyung Ryu, Jin-Woo Kim
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Patent number: 10050265Abstract: A positive electrode for an alkali metal-sulfur battery, the positive electrode including: a porous conductive material layer including a plurality of nanocarbon structures of a conductive material, wherein the conductive material defines a plurality of pores between the plurality of nanocarbon structures of the conductive material; sulfur, which is contained in the plurality of pores of the porous conductive material layer; and a polymer film disposed directly on at least a portion of the porous conductive material layer.Type: GrantFiled: December 1, 2015Date of Patent: August 14, 2018Assignees: SAMSUNG ELECTRONICS CO., LTD., ULVAC, INC.Inventors: Ryo Omoda, Takanobu Yamada, Haruhisa Nakano, Hirohiko Murakami, Naoki Tsukahara, Tatsuhiro Nozue, Yoshiaki Fukuda, Yuichi Aihara
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Patent number: 10050273Abstract: An electrode for a power storage device with good cycle characteristics and high charge/discharge capacity is provided. In addition, a power storage device including the electrode is provided. The electrode for the power storage device includes a conductive layer and an active material layer provided over the conductive layer, the active material layer includes graphene and an active material including a plurality of whiskers, and the graphene is provided to be attached to a surface portion of the active material including a plurality of whiskers and to have holes in part of the active material layer. Further, in the electrode for the power storage device, the graphene is provided to be attached to a surface portion of the active material including a plurality of whiskers and to cover the active material including a plurality of whiskers. Further, the power storage device including the electrode is manufactured.Type: GrantFiled: February 24, 2014Date of Patent: August 14, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Teppei Oguni, Takeshi Osada, Toshihiko Takeuchi
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Patent number: 10026953Abstract: A mixed electrode for a nonaqueous electrolyte battery includes: a first active material; a second active material that reacts with water more easily than the first active material; an organic moisture capture agent; and an organic binder that binds the first active material and the second active material. The organic moisture capture agent is present in the organic binder and the first active material has a smaller specific surface area than the second active material. Thus, the storability of the mixed electrode is improved and when the mixed electrode is applied to the battery, the cycle characteristics of the battery are improved.Type: GrantFiled: December 16, 2013Date of Patent: July 17, 2018Assignee: AUTOMOTIVE ENERGY SUPPLY CORPORATIONInventors: Yuji Tanjo, Hiroaki Tanizaki, Tatsuji Numata, Yoshihiro Niida, Yukinori Takahashi
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Patent number: 10008736Abstract: The present invention is related to formation and processing of antiperovskite material. In various embodiments, a thin film of aluminum doped antiperovskite is deposited on a substrate, which can be an electrolyte material of a lithium-based electrochemical storage device.Type: GrantFiled: October 23, 2013Date of Patent: June 26, 2018Assignee: QuantumScape CorporationInventors: Adrian Winoto, Anna Choi, Joseph Han, Will Hudson, Tim Holme, Cheng Chieh Chao
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Patent number: 9994961Abstract: A metallic alloy includes Cu and one or more metals M selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni and Zn, wherein the alloy has a surface in the form of a vermiculated arrangement of irregular, nanoporous lands separated by troughs or channels. It can be made by contacting a precursor alloy including Cu, M and Al with a caustic liquid under conditions sufficient to remove the Al. Or, a metallic alloy includes Cu and one or more metals M selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni and Zn, wherein the one or more metals M in total constitute in a range of 3 at. % to 7 at. %, relative to the total of Cu and M. Both types of alloy can be used as an electrocatalyst in a water electrolyzer or a hydrogen fuel cell.Type: GrantFiled: July 10, 2015Date of Patent: June 12, 2018Assignees: UNIVERSITY OF DELAWARE, THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Feng Jiao, Qi Lu, Gregory S. Hutchings, Jingguang Chen
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Patent number: 9991561Abstract: The present invention provides a lithium ion secondary battery comprising: a positive electrode; a negative electrode comprising a negative electrode active material comprising at least one carbon material selected from the group consisting of a natural graphite, an artificial graphite, a non-graphitizable carbon and a graphitizable carbon; and an electrolyte solution comprising a specific cyclic disulfonate ester compound and an acid anhydride.Type: GrantFiled: August 28, 2014Date of Patent: June 5, 2018Assignee: NEC CorporationInventors: Takeshi Azami, Hitoshi Ishikawa, Noboru Yoshida, Ikiko Shimanuki, Kazuaki Matsumoto, Makihiro Otohata
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Patent number: 9981247Abstract: Methods for making a multilevel core-shell structure having a core/graphene-based shell structure are described. A method for making a core/graphene-based shell structure can include obtaining a composition that includes core nano- or microstructures and graphene-based structures having at least a portion of a surface coated with a curable organic material, where the core nano- or microstructures and graphene-based structures are dispersed throughout the composition and subjecting the composition to conditions that cure the organic material and allow the graphene-based structures to self-assemble around the core nano- or microstructures to produce a core/graphene-based shell structure that has a graphene-based shell encompassing a core nano- or microstructure.Type: GrantFiled: November 9, 2016Date of Patent: May 29, 2018Assignee: SABIC Global Technologies B.V.Inventors: Nitin Chopra, James Lowrey, Ihab N. Odeh
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Patent number: 9985279Abstract: Provided are a silicon oxide-carbon composite, a method of preparing the same, and an energy storage device containing the same. In the method of preparing a silicon oxide-carbon composite, a reaction solution containing an organic solvent including an aromatic compound is provided. Crystalline carbon structures are formed by generating plasma in the reaction solution. A slurry is formed by adding silicon halide and a polyol in the reaction solution in which the crystalline carbon structures are dispersed. The slurry is separated from the organic solvent and subjected to thermal treatment.Type: GrantFiled: February 10, 2015Date of Patent: May 29, 2018Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVInventors: Sun Jae Kim, Hee June Jung, Kang Seop Yun, Eul Noh
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Graphene functionalized carbon nanotube polymer composites and methods for their preparation and use
Patent number: 9944774Abstract: Methods of forming graphene functionalized carbon nanotube polymer composites are provided. The methods can include functionalizing a plurality of carbon nanotubes using conducting functional molecules to form a composite nanofiller and embedding the composite nanofiller within a polymer material to form the graphene functionalized carbon nanotube polymer composite.Type: GrantFiled: January 8, 2013Date of Patent: April 17, 2018Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRASInventors: Ramaprabhu Sundara, Eswaraiah Varrla, Jyothirmayee Aravind Sasidharannair Sasikaladevi, Krishnan Balasubramanian -
Patent number: 9911546Abstract: A current collector which is suitable for discharging and charging at a large current density is provided. The present invention provides a current collector including a conductive substrate and a conductive resin layer provided on one side or both sides of the conductive substrate. The conductive resin layer contains a soluble nitrocellulose-based resin and a conductive material.Type: GrantFiled: July 29, 2011Date of Patent: March 6, 2018Assignees: UACJ CORPORATION, UACJ FOIL CORPORATIONInventors: Osamu Kato, Sohei Saito, Yukiou Honkawa, Mitsuyuki Wasamoto, Kenichi Kadowaki, Tsugio Kataoka
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Patent number: 9853287Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones, polyvinylalcohols (PVOH) and branched polyimides (HPI). The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments.Type: GrantFiled: August 24, 2011Date of Patent: December 26, 2017Assignee: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, John D. Affinito, Helmut Moehwald, Ruediger Schmidt, Anna Cristadoro, Ingrid Haupt, Raimund Pietruschka
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Patent number: 9812708Abstract: 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: GrantFiled: December 17, 2012Date of Patent: November 7, 2017Assignee: LG Chem, Ltd.Inventors: Chang-Wan Koo, Moon Kyu Cho, Joon Sung Bae, Jae Bin Chung
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Patent number: 9812713Abstract: Apparatus and techniques herein related battery plates. For example, a first battery plate can include a conductive silicon wafer. A first mechanical support can be located on a first side of the conductive silicon wafer. A first active material can be adhered to the first mechanical support and the first side of the conductive silicon wafer, the first active material having a first polarity. In an example, the battery plate can be a bipolar plate, such as having a second mechanical support located on a second side of the conductive silicon wafer opposite the first side, and a second active material adhered to the second mechanical support and the second side of the conductive silicon wafer, the second material having an opposite second polarity.Type: GrantFiled: May 23, 2014Date of Patent: November 7, 2017Assignee: Gridtential Energy, Inc.Inventors: Collin Mui, Daniel Moomaw
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Patent number: 9806343Abstract: Compositions of discrete carbon nanotubes for improved performance lead acid batteries. Further disclosed is a method to form a lead-acid battery with discrete carbon nanotubes.Type: GrantFiled: March 26, 2015Date of Patent: October 31, 2017Assignee: Molecular Rebar Design, LLCInventors: Clive P. Bosnyak, Kurt W. Swogger
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Patent number: 9806336Abstract: Provided is a positive electrode for nonaqueous electrolyte secondary batteries including a positive electrode mixture layer formed of a positive electrode mixture paste containing a positive electrode active material. The positive electrode active material has a particle diameter of 2 ?m or more and less than 7 ?m. The positive electrode mixture layer includes a first mixture layer in which a maximum diameter of pores formed between particles of the positive electrode active material is more than 1.0 ?m and 5.0 ?m or less, and a second mixture layer in which a maximum diameter of the pores is 1.0 ?m or less. The second mixture layer is arranged closer to the current collector than the first mixture layer. A ratio of a thickness of the first mixture layer to a thickness of the second mixture layer is more than 0.1 and 1.0 or less.Type: GrantFiled: September 21, 2012Date of Patent: October 31, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya Hashimoto, Yusuke Fukumoto, Keisuke Ohara, Yuji Yokoyama
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Patent number: 9780383Abstract: A process of producing a porous electrode substrate, including: dispersing first short carbon fibers and producing a first precursor sheet not having a three-dimensional entangled structure of the first short carbon fibers; treating the first precursor sheet such that the first short carbon fibers in the first precursor sheet are entangled and that a second precursor sheet having a three-dimensional entangled structure of the first short carbon fibers is obtained; dispersing second short carbon fibers on the second precursor sheet such that a porous electrode precursor sheet including the second precursor sheet and a third precursor sheet not having a three-dimensional entangled structure of the second short carbon fibers and stacked on the second precursor sheet is obtained; and carbonization treating the porous electrode substrate precursor sheet at a temperature of at least 1000° C. to obtain the porous electrode substrate.Type: GrantFiled: June 16, 2015Date of Patent: October 3, 2017Assignee: Mitsubishi Chemical CorporationInventors: Kazuhiro Sumioka, Yoshihiro Sako
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Patent number: 9755390Abstract: A process for making a biosensor comprising a hollow coil having wires coiled in parallel and an electronic circuit component connected to the coil, the process including: 1) providing a mandrel on which wires including at least a first wire, a second wire and a third wire are wound in parallel, 2a) immersing the mandrel in a first buffer solution comprising a first bioreceptor, a first monomer and optional additives, 2b) arranging the wires such that the first wire may be used as a working electrode, the second wire may be used as a counter electrode and the third wire may be used as a reference electrode of a three electrode electrochemical cell used in an electropolymerization process, 3) passing electric current through the first wire to form a first biocompatible coating of a first polymer polymerized from the first monomer comprising the first bioreceptor on the first wire, 4) removing the coil from the mandrel, 5) connecting the wires to their respective points of the electronic circuit component suchType: GrantFiled: April 17, 2013Date of Patent: September 5, 2017Assignee: NOVIOSENSE B.V.Inventors: Johannes Hendrikus Leonardus Hanssen, Christopher Wilson
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Patent number: 9716272Abstract: A positive electrode composition comprises a positive electrode active material composed of a lithium transition metal complex oxide represented by the general formula Li1+xNiyCozM1-y-z-wLwO2 (wherein 0?x?0.50, 0.30?y?1.0, 0<z?0.5, 0?w?0.1, 0.30<y+z+w?1, M represents at least one kind selected from Mn and Al, and L represents at least one kind of an element selected from the group consisting of Zr, Ti, Mg and W), and additive particles composed of acidic oxide particles.Type: GrantFiled: June 20, 2011Date of Patent: July 25, 2017Assignee: NICHIA CORPORATIONInventors: Kenta Kawai, Kengo Ooishi, Hisato Sadamasu, Chika Kinouchi, Yasuhiro Yoshida
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Patent number: 9711783Abstract: A negative electrode for a nonaqueous electrolyte secondary battery according to one aspect of the present invention includes a negative electrode mixture layer that contains a binder and a negative electrode active material particle that forms an alloy with lithium and is formed on a current collector. The negative electrode mixture layer includes a base portion near the current collector and pillar-shaped portions formed on the base portion. A negative electrode for a nonaqueous electrolyte secondary battery according to another aspect of the present invention includes a negative electrode mixture layer that contains a binder and a negative electrode active material particle that forms an alloy with lithium and is formed on a current collector. The negative electrode mixture layer includes pillar-shaped portions and the particle diameter of the negative electrode active material particle is 20% or less of the maximum diameter of the pillar-shaped portions.Type: GrantFiled: January 10, 2014Date of Patent: July 18, 2017Assignees: SANYO Electric Co., Ltd., PANASONIC CorporationInventors: Kazuto Fukuda, Ayano Toyoda, Shouichiro Sawa, Taizou Sunano
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Patent number: 9705135Abstract: There are provided a negative electrode for a nonaqueous electrolyte secondary battery having excellent initial efficiency and good moldability of pillar portions included in a negative electrode mixture layer, and a nonaqueous electrolyte secondary battery. A negative electrode (20) for a nonaqueous electrolyte secondary battery according to one aspect of the present invention includes a negative electrode current collector (21) and a negative electrode mixture layer (22) formed on the negative electrode current collector (21) and containing a binder and a negative electrode active material particle that forms an alloy with lithium. The negative electrode mixture layer (22) includes a base portion (22a) near the negative electrode current collector (21) and pillar portions (22b) formed on the base portion (21a). The binder contains a polyimide resin. The polyimide resin has an average molecular weight of 60000 or more.Type: GrantFiled: March 19, 2014Date of Patent: July 11, 2017Assignee: SANYO Electric Co., Ltd.Inventors: Shouichiro Sawa, Ayano Toyoda, Taizou Sunano
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Patent number: 9698411Abstract: According to one embodiment, there is provided an electrode for battery which includes a current collector and an active material layer provided on the current collector. The active material layer contains particles of a lithium titanate compound having a spinel structure and a basic polymer. Here, the basic polymer is coating at least a part of the surface of the particles of the lithium titanate compound.Type: GrantFiled: August 16, 2013Date of Patent: July 4, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Dai Yamamoto, Takuya Iwasaki, Yasuhiro Harada, Hiroki Inagaki, Hideki Satake