Halogen Containing Patents (Class 429/199)
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Publication number: 20140308579Abstract: Provided are a positive electrode active material for a sodium ion secondary battery, and a positive electrode and a sodium ion secondary battery using the material. The positive electrode active material for a sodium ion secondary battery comprises a lithium sodium-based compound containing lithium (Li), sodium (Na), iron (Fe), and oxygen (O).Type: ApplicationFiled: April 8, 2014Publication date: October 16, 2014Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Akira KOJIMA, Kazuhito KAWASUMI, Junichi NIWA, Yuta IKEUCHI, Toshikatsu KOJIMA, Tetsuo SAKAI
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Patent number: 8859140Abstract: An electrode for a molten salt battery includes a current collector connectable to an electrode terminal of the molten salt battery and an active material. The current collector has an internal space in which small spaces are mutually coupled. The internal space of the current collector is filled with the active material.Type: GrantFiled: December 16, 2011Date of Patent: October 14, 2014Assignee: Sumitomo Electric Industries, Ltd.Inventors: Syoichiro Sakai, Shinji Inazawa, Masatoshi Majima, Koji Nitta, Atsushi Fukunaga
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Patent number: 8859143Abstract: 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: GrantFiled: January 3, 2011Date of Patent: October 14, 2014Assignee: Nanotek Instruments, Inc.Inventors: Aruna Zhamu, ChenGuang Liu, David Neff, Bor Z. Jang, Zhenning Yu
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Publication number: 20140302403Abstract: A non-aqueous Magnesium electrolyte comprising: (a) at least one organic solvent; (b) at least one electrolytically active, soluble, inorganic Magnesium (Mg) salt complex represented by the formula: MgaZbXc wherein a, b, and c are selected to maintain neutral charge of the molecule, and Z and X are selected such that Z and X form a Lewis Acid, and 1?a?10, 1?b?5, and 2?c?30. Further Z is selected from a group consisting of aluminum, boron, phosphorus, titanium, iron, and antimony; X is selected from the group consisting of I, Br, Cl, F and mixtures thereof. Rechargeable, high energy density Magnesium cells containing an cathode, an Mg metal anode, and an electrolyte of the above-described type are also disclosed.Type: ApplicationFiled: June 19, 2014Publication date: October 9, 2014Inventors: Robert Ellis Doe, Ruoban HAN, Yossef GOFER, Doron AURBACH, Nir POUR, Evgeny STERENBERG
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Patent number: 8852808Abstract: This invention provides a multi-layer article comprising a first electrode material, a second electrode material, and a porous separator disposed between and in contact with the first and the second electrode materials, wherein the porous separator comprises a nanoweb consisting essentially of a plurality of nanofibers of a fully aromatic polyimide. Also provided is a method for preparing the multi-layer article, and an electrochemical cell employing the same. A multi-layer article comprising a polyimide nanoweb with enhanced properties is also provided.Type: GrantFiled: June 26, 2013Date of Patent: October 7, 2014Assignee: E I du Ponte de Nemours and CompanyInventors: Pankaj Arora, Stephane Francois Bazzana, T Joseph Dennes, Eric P Holowka, Lakshmi Krishnamurthy, Stephen Mazur, Glen E Simmonds
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Patent number: 8852769Abstract: A nonaqueous secondary battery includes a current cutoff mechanism that cuts off a current in a short period of time in response to a rise in pressure inside a battery outer body in at least one of a conductive path through which a current is taken out from a positive electrode plate to outside of the battery and a conductive path through which a current is taken out from a negative electrode plate to outside of the battery. At least one type selected from an oligomer containing a cyclohexyl group and a phenyl group, a modified product of the oligomer containing a cyclohexyl group and a phenyl group, a polymer containing a cyclohexyl group and a phenyl group, and a modified product of the polymer containing a cyclohexyl group and a phenyl group is present on the surface of the positive electrode plate.Type: GrantFiled: October 24, 2011Date of Patent: October 7, 2014Assignee: SANYO Electric Co., Ltd.Inventors: Masahiro Iyori, Hirofusa Tanaka, Naoki Terada, Seiji Omura, Yasuhiro Yamauchi, Toshiyuki Nohma, Masahide Miyake, Yasuyuki Kusumoto, Shigeki Matsuta, Toyoki Fujihara, Takeshi Yoshida
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Publication number: 20140295298Abstract: Some batteries can exhibit greatly improved performance by utilizing electrodes having randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the electrode. The network of channels can provide a diffusion pathway for the liquid electrolyte and/or for reactant gases. Metal-air batteries can benefit from such electrodes. In particular Li-air batteries show extremely high capacities, wherein the network of channels allow oxygen to diffuse through the electrode and mesopores in the electrode can store discharge products.Type: ApplicationFiled: May 6, 2014Publication date: October 2, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jiguang Zhang, Jie Xiao, Jun Liu, Wu Xu, Xiaolin Li, Deyu Wang
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Publication number: 20140295261Abstract: An object is to provide an electrochemical device in which lithium deposition and reduction in battery capacity can be inhibited even when the concentration of a lithium salt in an electrolytic solution is lower than 1.0 M. Lithium deposition can be inhibited and lithium whiskers can be dissolved by applying an inversion pulse current for a short time more than once in a charging period of a secondary battery which deteriorates. By applying the inversion pulse current more than once, deterioration of a lithium-ion secondary battery due to repeated charging can be suppressed even when it is a secondary battery in which the concentration of a lithium salt in an electrolytic solution is lower than 1.0 M and therefore lithium is easily deposited.Type: ApplicationFiled: March 20, 2014Publication date: October 2, 2014Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Hiroyuki MIYAKE, Teppei OGUNI, Tatsuya TAKAHASHI, Takuya MIWA, Aya HITOTSUYANAGI
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Patent number: 8846247Abstract: A non-aqueous electrolyte solution for a non-aqueous electrolyte secondary battery that has a positive electrode and a negative electrode capable of the absorbing and releasing of a metal ion, and a separator, the non-aqueous electrolyte solution comprising, in addition to an electrolyte and a non-aqueous solvent, 0.01 mass % or more to less than 3 mass % of a compound having one or more partial structure represented by the following general formula (1) and two or more isocyanate groups in the molecule: (In the general formula (1), R represents hydrogen or a C1-C12 organic group that may contain an isocyanate group and is constituted of atoms selected from the group consisting of hydrogen atom, carbon atom, nitrogen atom, oxygen atom, sulfur atom, phosphorus atom, and halogen atom).Type: GrantFiled: August 12, 2013Date of Patent: September 30, 2014Assignee: Mitsubishi Chemical CorporationInventors: Yasuyuki Shigematsu, Masamichi Onuki, Kunihisa Shima
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Patent number: 8846249Abstract: The positive electrode of a lithium ion secondary battery includes active material particles represented by LixNi1?yMyMezO2+?, and the active material particles include a lithium composite oxide represented by LixNi1?yMyO2, (where 0.95?x?1.1, 0<y?0.75, 0.001?z?0.05). The element M is selected from the group consisting of alkaline-earth elements, transition elements, rare-earth elements, IIIb group elements and IVb group elements. The element Me is selected from the group consisting of Mn, W. Nb, Ta, In, Mo, Zr and Sn, and the element Me is included in a surface portion of the active material particles. The lithium content x in the lithium composite oxide in an end-of-discharge state when a constant current discharge is performed at a temperature of 25° C. with a current value of 1C and an end-of-discharge voltage of 2.5 V satisfies 0.85?x??0.013Ln(z)+0.871.Type: GrantFiled: June 12, 2006Date of Patent: September 30, 2014Assignee: Panasonic CorporationInventor: Kensuke Nakura
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Publication number: 20140272610Abstract: An active material composition includes a porous graphene nanocage and a source material. The source material may be a sulfur material. The source material may be an anodic material. A lithium-sulfur battery is provided that includes a cathode, an anode, a lithium salt, and an electrolyte, where the cathode of the lithium-sulfur battery includes a porous graphene nanocage and a sulfur material and at least a portion of the sulfur material is entrapped within the porous graphene nanocage. Also provided is a lithium-air battery that includes a cathode, an anode, a lithium salt, and an electrolyte, where the cathode includes a porous graphene nanocage and where the cathode may be free of a cathodic metal catalyst.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Khalil Amine, Jun Lu, Peng Du, Jianguo Wen, Larry A. Curtiss
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Publication number: 20140272604Abstract: Provided is an electrolyte solution additive including lithium difluorophosphate (LiDFP), a vinylene carbonate-based compound, and a sultone-based compound. Also, a non-aqueous electrolyte solution including the electrolyte solution additive and a lithium secondary battery including the non-aqueous electrolyte solution are provided. The lithium secondary battery including the electrolyte solution additive of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and swelling characteristics.Type: ApplicationFiled: May 29, 2014Publication date: September 18, 2014Applicant: LG CHEM, LTD.Inventors: Young Min Lim, Chul Haeng Lee, Doo Kyung Yang, Yu Ha An
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Publication number: 20140272603Abstract: An electrolyte solution for a lithium sulfur battery contains a lithium oxalatoborate compound in a 0.05-2 M solution in conventional lithium sulfur battery electrolyte solvents, optionally with other lithium compounds. Examples of solvents include dimethoxyethane (DME), dioxolane, and triethyleneglycol dimethyl ether (TEGDME). Electrochemical cells contain a lithium anode, a sulfur-containing cathode, and a non-aqueous electrolyte containing the lithium oxalatoborate compound. Lithium sulfur batteries contain a casing enclosing a plurality of the cells.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Li Yang, Mei Cai, Minghong Liu
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Publication number: 20140272607Abstract: A substantially non-aqueous electrolyte solution includes an alkali metal salt, a polar aprotic solvent, and an organophosphorus compound of Formula IA, IB, or IC: where R1, R2, R3 and R4 are each independently hydrogen, halogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl, heteroaryl, alkoxy, alkenoxy, alkynoxy, cycloalkoxy, aryloxy, heterocyclyloxy, heteroaryloxy, siloxyl, silyl, or organophosphatyl; R5 and R6 are each independently alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl, or heteroaryl; R7 is and R8, R9 and R10 are each independently alkyl, cycloalkyl, aryl, heterocyclyl, or heteroaryl; provided that if the organophosphorus compound is of Formula IB, then at least one of R5, and R6 are other than hydrogen, alkyl, or alkenyl; and if the organophosphorus compound is of Formula IC, then the electrolyte solution does not include 4-methylene-1,3-dioxolan-2-one or 4,5-dimethylene-1,3-dioxolan-2-one.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: UCHICAGO ARGONNE LLCInventors: Khalil Amine, Lu Zhang, Zhengcheng Zhang
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Publication number: 20140255774Abstract: A magnesium ion battery includes a first electrode including a substrate and an active material deposited on the substrate. Also provided is a second electrode. An electrolyte is located between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes indium and an intermetallic compound of magnesium and indium.Type: ApplicationFiled: March 5, 2013Publication date: September 11, 2014Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Nikhilendra Singh, Masaki Matsui
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Publication number: 20140255797Abstract: In one embodiment, the present disclosure relates to a rechargeable Li—S battery including a cathode including a firbrous carbon material, a catholyte including a polysulfide, and an anode. In another embodiment, the present disclosure relates to a charged or partially charged rechargeable Li—S battery including a cathode including a fibrous carbon material and amorphous microparticles of elemental sulfur, a catholyte including high-order polysulfides having a general formula of Li2Sn, wherein n is at least eight, and an anode. In another embodiment, the present disclosure relates to a discharged or partially discharged rechargeable Li—S battery including a cathode including a fibrous carbon material and amorphous microparticles of Li2S, a catholyte including a negligible amount of polysulfides, and an anode.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Inventors: Arumugam Manthiram, Yongzhu Fu
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Publication number: 20140255795Abstract: 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: ApplicationFiled: March 10, 2014Publication date: September 11, 2014Inventors: Arumugam Manthiram, Chenxi Zu
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Publication number: 20140255773Abstract: An additive of an electrolyte of a lithium battery at least includes an initiator, where the initiator is decomposed at a temperature higher than a default temperature to generate free radicals. Also disclosed is an electrolyte of a lithium battery, at least including the above additive, carbonates, and a lithium salt.Type: ApplicationFiled: March 6, 2014Publication date: September 11, 2014Applicant: Formosa Plastics CorporationInventors: WAN TUN HUNG, MING CHENG SHEN, CHUN YEN LIU, CHI CHANG HUNG
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Patent number: 8828603Abstract: A secondary battery includes: an electrolytic solution; a positive electrode; and a negative electrode, at least one of the positive electrode, the negative electrode, and the electrolytic solution containing an alkyl carbonate represented by the following formula (1) R—O—C(?O)—O—X??(1) wherein R is a linear alkyl group or halogenated alkyl group having a carbon number of from 8 to 20, or a branched alkyl group or halogenated alkyl group having a carbon number of from 8 to 20 in a main chain thereof; and X is an alkali metal element.Type: GrantFiled: August 17, 2012Date of Patent: September 9, 2014Assignee: Sony CorporationInventors: Ichiro Yamada, Tadahiko Kubota
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Patent number: 8828604Abstract: 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: GrantFiled: June 11, 2008Date of Patent: September 9, 2014Assignee: Sony CorporationInventors: Hiroshi Horiuchi, Takehiko Tanaka, Masanori Soma
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Patent number: 8828579Abstract: The invention provides a battery, which can improve battery characteristics such as high temperature storage characteristics. The battery comprises a battery device, wherein a cathode and an anode are wound with a separator in between. The anode contains an anode material capable of inserting and extracting Li as an anode active material. An electrolytic solution is impregnated in the separator. The electrolytic solution contains a solvent, and an electrolyte salt such as Li[B(CF3)4] dissolved in the solvent, which is expressed by a chemical formula of Li[B(RF1)(RF2)(RF3)RF4]RF 1, RF 2, RF 3, and RF 4 represent a perfluoro alkyl group whose number of fluorine or carbon is from 1 to 12, respectively. Consequently, high temperature storage characteristics are improved.Type: GrantFiled: March 30, 2004Date of Patent: September 9, 2014Assignee: Sony CorporationInventors: Tadahiko Kubota, Momoe Adachi, Shigeru Fujita
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Publication number: 20140248542Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.Type: ApplicationFiled: May 9, 2014Publication date: September 4, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Jinsung KIM, Narae PARK, Jinhyunk LIM, Suhee HAN, Jinbum KIM, Jungkang OH
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Patent number: 8822085Abstract: A non-aqueous electrolyte solution for a lithium secondary battery includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes LiN(CF3SO2)2. The non-aqueous electrolyte solution further includes a sulfate-based compound and vinylene carbonate. A lithium secondary battery having the above non-aqueous electrolyte solution may keep overall high temperature performance in a high level and also improve low temperature power characteristics.Type: GrantFiled: March 26, 2010Date of Patent: September 2, 2014Assignee: LG Chem, Ltd.Inventors: Ra-Young Hwang, Ji-Sang Yu
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Patent number: 8815454Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator separating the positive electrode and the negative electrode, and an electrolyte. The negative electrode active material of the negative electrode includes a material that is capable of reversibly intercalating and deintercalating lithium ions and a metallic material capable of alloying with lithium. The electrolyte includes a chemical compound containing a nitrile (—CN) radical.Type: GrantFiled: December 12, 2008Date of Patent: August 26, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Yong-Shik Kim, Jin-Bum Kim, Jin-Sung Kim, Na-Rae Park
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Patent number: 8815449Abstract: A material (hereinafter referred to as “positive electrode material”) including sodium manganate powder as a positive electrode active material, carbon black powder as a conductive agent, and polytetrafluoroethylene as a binder is prepared. The positive electrode material is mixed in an N-methylpyrrolidone solution to produce slurry as a positive electrode mixture. A working electrode is produced by applying the slurry on a positive electrode collector. A negative electrode containing tin or germanium is produced. The non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a non-aqueous solvent produced by mixing ethylenecarbonate and diethyl carbonate.Type: GrantFiled: January 20, 2006Date of Patent: August 26, 2014Assignee: Sanyo Electric Co., Ltd.Inventors: Takao Inoue, Masahisa Fujimoto, Kumiko Kanai
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Publication number: 20140234702Abstract: The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Embodiments of the invention use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach obtains a uniform and thin (˜tens of nanometers) sulfur coating on graphene oxide sheets by a chemical reaction-deposition strategy and a subsequent low temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides demonstrate lithium/sulfur cells with a high reversible capacity of 950-1400 mAh g?1, and stable cycling for more than 50 deep cycles at 0.1 C.Type: ApplicationFiled: September 28, 2012Publication date: August 21, 2014Inventors: Yuegang Zhang, Elton J. Cairns, Liwen Ji, Mumin Rao
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Publication number: 20140234700Abstract: With a small amount of a conductive additive, an electrode for a storage battery including an active material layer which is highly filled with an active material is provided. The use of the electrode enables fabrication of a storage battery having high capacity per unit volume of the electrode. By using graphene as a conductive additive in an electrode for a storage battery including a positive electrode active material, a network for electron conduction through graphene is formed. Consequently, the electrode can include an active material layer in which particles of an active material are electrically connected to each other by graphene. Therefore, graphene is used as a conductive additive in an electrode for a sodium-ion secondary battery including an active material with low electric conductivity, for example, an active material with a band gap of 3.0 eV or more.Type: ApplicationFiled: February 14, 2014Publication date: August 21, 2014Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Tamae Moriwaka, Satoshi Seo, Takuya Hirohashi, Kunio Hosoya, Shunsuke Adachi
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Publication number: 20140234701Abstract: The object is to provide a nonaqueous electrolyte secondary battery which can improve performance (increase in capacity) and reduce cost by improvement in heat stability. There are provided a positive electrode including a metal halide and a positive electrode active material containing a lithium transition metal oxide which includes nickel and manganese, a negative electrode including a negative electrode active material, and a nonaqueous electrolyte including a nonaqueous solvent, a fluorine-containing lithium salt, and a lithium salt which includes an oxalate complex as an anion.Type: ApplicationFiled: September 20, 2012Publication date: August 21, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Tadayoshi Tanaka, Takatoshi Higuchi, Kazunari Ohkita, Katsunori Yanagida, Yoshinori Kida
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Publication number: 20140220450Abstract: An electrolyte for use in electrochemical cells is provided. One type of non-aqueous Magnesium electrolyte comprises: at least one organic solvent; at least one electrolytically active, soluble, inorganic Magnesium salt complex represented by the formula: MgnZX3+(2*n), in which Z is selected from a group consisting of aluminum, boron, phosphorus, titanium, iron, and antimony; X is a halogen and n=1-5. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg+2 and total water content of <200 ppm. The use of this electrolyte promotes the electrochemical deposition and dissolution of Mg from the negative electrode without the use of any additive. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described. Rechargeable, high energy density Magnesium cells containing a cathode, an Mg metal anode, and an electrolyte are also disclosed.Type: ApplicationFiled: December 30, 2013Publication date: August 7, 2014Applicant: PELLION TECHNOLOGIES, INC.Inventors: Robert E. Jilek, David Eaglesham, Robert Ellis Doe, Andrew Gmitter
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Publication number: 20140220453Abstract: The invention relates to a novel lithium-sulphur type electrochemical battery A. According to the invention, the positive electrode (1) is made solely from a porous electronic conductor substrate forming a current collector and the electrolyte contains lithium polysulphides (Li2Sn) as sources of lithium and sulphur ions, said lithium polysulphides being formed ex-situ and not in the battery. The invention also relates to a method for the production of said device.Type: ApplicationFiled: August 31, 2012Publication date: August 7, 2014Applicant: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Celine Barchasz, Sebastien Patoux, Yvan Reynier
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Publication number: 20140220455Abstract: A rechargeable lithium battery including a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material including a sacrificial positive active material selected from lithium nickel oxides, lithium molybdenum oxides, and combinations thereof; and a non-aqueous electrolyte, is disclosed.Type: ApplicationFiled: July 23, 2013Publication date: August 7, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Young-Hun Lee, Na-Leum Yoo, Na-Ri Park, Yong-Chul Park
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Patent number: 8795884Abstract: In the nonaqueous secondary battery of the present invention, a positive electrode mixture layer included in a positive electrode contains a lithium-containing complex oxide defined by the general formula LixM1yM2zM3vO2 (where, M1 represents at least one transition metal element selected from the group consisting of Co, Ni and Mn, M2 represents at least one metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, M3 represents an element other than Li, M1 and M2, 0.97?x<1.02, 0.8?y<1.02, 0.002?z?0.05, and 0?v?0.05) and has a density of 3.5 g/cm3 or more. A nonaqueous electrolyte contains a fluorinated nitrile compound including two or more cyano groups or a cyano group and an ester group.Type: GrantFiled: April 30, 2009Date of Patent: August 5, 2014Assignees: Hitachi Maxell, Ltd., Kanto Denka Kogyo Co., Ltd.Inventors: Hideo Sakata, Fusaji Kita, Kumiko Ishizuka, Akiko Kuwabara, Yuan Gao
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Patent number: 8795903Abstract: The invention discloses various embodiments of Li-ion electrolytes containing flame retardant additives that have delivered good performance over a wide temperature range, good cycle life characteristics, and improved safety characteristics, namely, reduced flammability. In one embodiment of the invention there is provided an electrolyte for use in a lithium-ion electrochemical cell, the electrolyte comprising a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), a fluorinated co-solvent, a flame retardant additive, and a lithium salt. In another embodiment of the invention there is provided an electrolyte for use in a lithium-ion electrochemical cell, the electrolyte comprising a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), a flame retardant additive, a solid electrolyte interface (SEI) film forming agent, and a lithium salt.Type: GrantFiled: August 18, 2009Date of Patent: August 5, 2014Assignee: California Institute of TechnologyInventors: Marshall C. Smart, Kiah A. Smith, Ratnakumar V. Bugga, Surya G. Prakash, Frederick Charles Krause
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Publication number: 20140212770Abstract: Disclosed are a non-aqueous electrolytic solution that exhibits excellent electrochemical characteristics over a wide temperature range, and an electrochemical device using the non-aqueous electrolytic solution. The non-aqueous electrolytic solution includes a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent, wherein the non-aqueous electrolytic solution further comprises one compound represented by general formula (I): wherein R1 represents alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, alkynyl having 3 to 6 carbon atoms, or aryl having 6 to 12 carbon atoms; X represents a divalent linking group that has 1 to 6 carbon atoms and is optionally substituted by a halogen atom; and Y1 represents a specific substituent, for example, alkylcarbonyl.Type: ApplicationFiled: August 3, 2012Publication date: July 31, 2014Applicant: Ulbe industries, Ltd.Inventors: Koji Abe, Kei Shimamoto
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Publication number: 20140205916Abstract: Mixtures comprising LiPO2F2 and LiPF6 both of which are electrolyte salts or additive for, i.a., Li ion batteries, are manufactured by the reaction of POF3 and LiF. The mixtures can be extracted with suitable solvents to provide solutions containing LiPO2F2 and LiPF6 which can be applied for the manufacture of Li ion batteries, Li-air batteries and Li-sulfur batteries. Equimolar mixtures comprising LiPO2F2 and LiPF6 are also described, as well as a method for the manufacture of electrolyte compositions obtained by the extraction of equimolar mixtures comprising LiPO2F2 and LiPF6.Type: ApplicationFiled: July 31, 2012Publication date: July 24, 2014Applicant: SOLVAY SAInventors: Placido Garcia-Juan, Alf Schulz
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Publication number: 20140205914Abstract: Disclosed are an electrolyte for a rechargeable lithium battery including an ionic liquid represented by Chemical Formula 1, a lithium salt, and an organic solvent, and a rechargeable lithium battery including the electrolyte for a rechargeable lithium battery.Type: ApplicationFiled: December 13, 2013Publication date: July 24, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: SANG-IL HAN, Woo-Cheol SHIN, Jung-Yi YU, Tae-Hyun BAE, Myung-Hwan JEONG, Sang-Gun KIM
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Patent number: 8785015Abstract: Disclosed are an electrolyte for a secondary battery, and a secondary battery including the same, the electrolyte including an electrolyte salt; an electrolyte solvent; and a compound generating heat through oxidation at voltages higher than drive voltage of a cathode, wherein the compound can decompose or evaporate electrolyte components by oxidation heat, thereby causing gas generation. Also, the compound is included in an internal pressure increase accelerant for a battery. Upon overcharge, since a compound subjected to oxidation at voltages higher than normal drive voltage of a cathode generates heat, electrolyte components can be decomposed or evaporated, thereby generating gas by the oxidation heat. Accordingly, it is possible to operate a safety means of a battery, without using an internal pressure increasing material directly generating gas through oxidation at overcharge voltage as the electrolyte additive, and thus to improve the overcharge safety of a secondary battery.Type: GrantFiled: May 15, 2008Date of Patent: July 22, 2014Assignee: LG Chem, Ltd.Inventors: Mi Young Son, Jeong-Ju Cho, Hochun Lee, Joomi Jeon, Sunghoon Yu
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Publication number: 20140199597Abstract: The present disclosure provides an embodiment of an integrated structure that includes a first electrode of a first conductive material embedded in a first semiconductor substrate; a second electrode of a second conductive material embedded in a second semiconductor substrate; and a electrolyte disposed between the first and second electrodes. The first and second semiconductor substrates are bonded together through bonding pads such that the first and second electrodes are enclosed between the first and second semiconductor substrates. The second conductive material is different from the first conductive material.Type: ApplicationFiled: January 15, 2013Publication date: July 17, 2014Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chyi-Tsong Ni, I-Shi Wang, Yi Hsun Chiu, Ching-Hou Sue
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Publication number: 20140199599Abstract: Disclosed is an electrolyte for a rechargeable lithium battery including an organic solvent; a lithium salt; a flame retardant; and at least one acrylate compound having a fluorinated alkyl group. The electrolyte for a rechargeable battery may provide a rechargeable lithium battery having flame-retardant characteristics without decrease of cycle-life and battery performance.Type: ApplicationFiled: July 19, 2013Publication date: July 17, 2014Inventors: Jung-Yi YU, Woo-Cheol SHIN, Sang-IL HAN, Tae-Hyun BAE, Myung-Hwan JEONG, Sang-Geun KIM
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Publication number: 20140199601Abstract: The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/charge capacity, and internal resistance, when the additive is used for electrical storage devices such as non-aqueous electrolyte solution secondary cells and electric double layer capacitors. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and to provide an electrical storage device using the non-aqueous electrolyte solution.Type: ApplicationFiled: July 6, 2012Publication date: July 17, 2014Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomohiro Onozuka, Shohei Fujimoto, Koji Fujita
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Patent number: 8771881Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.Type: GrantFiled: October 22, 2008Date of Patent: July 8, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
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Publication number: 20140186696Abstract: To provide a nonaqueous electrolyte secondary battery, containing: a positive electrode, which contains a positive electrode active material capable of inserting and detaching anions; a negative electrode, which contains a negative electrode active material capable of accumulating and releasing metal lithium, or lithium ions, or both thereof; and a nonaqueous electrolyte formed by dissolving a lithium salt in a nonaqueous solvent, wherein the nonaqueous electrolyte secondary battery contains a solid lithium salt at 25° C., and discharge voltage of 4.0 V.Type: ApplicationFiled: March 10, 2014Publication date: July 3, 2014Inventors: Nobuaki ONAGI, Eiko Hibino, Susumu Okada, Tatsumi Ishihara
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Patent number: 8765296Abstract: Disclosed is an ionic liquid having a low melting point, a low viscosity, and high electrical conductivity. Specifically disclosed is an anion represented by [CF3OCF2CF2BF3]? for use in the production of such ionic liquids.Type: GrantFiled: May 1, 2009Date of Patent: July 1, 2014Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Hajime Matsumoto, Naohiro Terasawa, Seiji Tsuzuki
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Publication number: 20140178770Abstract: The Coulombic efficiency of lithium deposition/stripping can be improved while also substantially preventing lithium dendrite formation and growth using particular electrolyte compositions. Embodiments of the electrolytes include organic solvents and their mixtures to form high-quality SEI layers on the lithium anode surface and to prevent further reactions between lithium and electrolyte components. Embodiments of the disclosed electrolytes further include additives to suppress dendrite growth during charge/discharge processes. The solvent and additive can significantly improve both the Coulombic efficiency and smoothness of lithium deposition. By optimizing the electrolyte formulations, practical rechargeable lithium energy storage devices with significantly improved safety and long-term cycle life are achieved. The electrolyte can also be applied to other kinds of energy storage devices.Type: ApplicationFiled: February 27, 2014Publication date: June 26, 2014Inventors: Wu Xu, Ji-Guang Zhang, Yaohui Zhang, Xilin Chen
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Publication number: 20140178751Abstract: Provided is an electrolyte additive for a lithium ion secondary battery including an organic lithium compound and a hyper-branched structure material. The electrolyte additive enhances the decomposition voltage of the electrolyte up to 5.5 V, and increases the heat endurable temperature by 10° C. or more. The safety of the battery is thus improved.Type: ApplicationFiled: December 19, 2013Publication date: June 26, 2014Applicant: Industrial Technology Research InstituteInventors: Tsung-Hsiung Wang, Chung-Liang Chang, Jing-Pin Pan
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Publication number: 20140170479Abstract: Saline battery concepts and method of fabrication are disclosed. The battery includes a base structure having electrode alloys. An inter-connective matrix is formed between the electrode alloys. The cathode and anode side are integrated within the base structure to exhibit a voltage pyramid. A high amperage output is configured to have a low gain in resistance and to have a minimized loss across the inter-connective matrix between the electrode alloys to provide a synergistic gain in excess of entropic losses.Type: ApplicationFiled: March 15, 2013Publication date: June 19, 2014Inventor: Bill Todorof
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Publication number: 20140170507Abstract: The present invention provides: a non-aqueous electrolyte for an electrochemical device, having ion conductivity sufficient for practical use and capable of improving energy density; a method for producing the same; and an electrochemical device using the same. The non-aqueous electrolyte for an electrochemical device includes a non-aqueous solvent and an alkaline earth metal chloride. The alkaline earth metal chloride is dissolved in an amount of 0.015 mol or more relative to 1 mol of the non-aqueous solvent. The total content of the non-aqueous solvent and the alkaline earth metal chloride is 70 mass % or more in the non-aqueous electrolyte.Type: ApplicationFiled: March 11, 2013Publication date: June 19, 2014Applicant: PANASONIC CORPORATIONInventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
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Publication number: 20140170478Abstract: An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a battery including the electrochemical cell.Type: ApplicationFiled: March 12, 2013Publication date: June 19, 2014Applicant: SION POWER CORPORATIONInventors: Zhaohui Liao, Chariclea Scordilis-Kelley, Yuriy Mikhaylik
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Publication number: 20140170480Abstract: A method for making a composite electrode for a lithium ion battery comprises the steps of: preparing a slurry containing particles of inorganic electrode material(s) suspended in a solvent; preheating a porous metallic substrate; loading the metallic substrate with the slurry; baking the loaded substrate at a first temperature; curing the baked substrate at a second temperature sufficient to form a desired nanocrystalline material within the pores of the substrate; calendaring the cured composite to reduce internal porosity; and, annealing the calendared composite at a third temperature to produce a self-supporting multiphase electrode. Because of the calendaring step, the resulting electrode is self-supporting, has improved current collecting properties, and improved cycling lifetime. Anodes and cathodes made by the process, and batteries using them, are also disclosed.Type: ApplicationFiled: November 26, 2013Publication date: June 19, 2014Inventor: Isaiah O. Oladeji
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Publication number: 20140141342Abstract: The present invention relates to an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, wherein the electrolyte comprises an organic solvent and an electrolyte additive, represented by chemical formula 1 and mixed lithium salts in the organic solvent so that room and high temperature life-time properties of the battery can be improved. Said chemical 1 is defined in the specification.Type: ApplicationFiled: July 12, 2012Publication date: May 22, 2014Inventors: Hyeong Kyu Lim, Hong Hie Lee, Eun Gi Shim, Jong Su Kim, Chang Sin Lee, Kyung Il Park, Hahn Mok Song