The Hetero Ring Is A Cyclic Carbonate (e.g., Ethylene Carbonate, Propylene Carbonate, Etc.) Patents (Class 429/338)
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Patent number: 9093720Abstract: Disclosed is a non-aqueous electrolyte comprising: a non-aqueous cyclic solvent; a catalyst for polymerization, which is activated depending on temperature or voltage to induce the polymerization of the non-aqueous cyclic solvent; and an electrolyte salt. Also, a secondary battery comprising the non-aqueous electrolyte is disclosed. The non-aqueous electrolyte does not influence the performance of the battery at the normal operating temperature and voltage of the secondary battery. However, when the battery misoperates due to high temperature or overcharge, the polymerization of the non-aqueous cyclic solvent can occur due to the catalyst for polymerization contained in the non-aqueous electrolyte, at a specific temperature or voltage, to increase the resistance of the electrolyte and reduce the ion conductivity of the electrolyte, thus increasing the safety of the battery.Type: GrantFiled: December 13, 2006Date of Patent: July 28, 2015Assignee: LG CHEM, LTD.Inventors: Pil Kyu Park, Je Young Kim, Sung Hoon Yu, Young Tae Lee, Soon Ho Ahn
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Publication number: 20150140450Abstract: An electrolyte solution including a non-aqueous organic solvent and a magnesium salt represented by Formula 1: wherein in Formula 1, groups CY1, CY2, A1 to A10, and variable n are defined in the specification.Type: ApplicationFiled: April 17, 2014Publication date: May 21, 2015Applicant: Samsung Electronics Co., Ltd.Inventors: Basab ROY, Dong-young KIM, Youn-hee LIM, Seok-soo LEE
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Publication number: 20150132666Abstract: There is provided a positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode being capable of improving the charge-discharge cycle characteristics of the nonaqueous electrolyte secondary battery. A positive electrode 12 of a nonaqueous electrolyte secondary battery 1 contains positive electrode active material particles. The positive electrode active material particles contain a lithium-containing transition metal oxide. The lithium-containing transition metal oxide has a crystal structure that belongs to the space group P63mc. A compound of at least one selected from the group consisting of boron, zirconium, aluminum, magnesium, titanium, and a rare-earth element is attached to surfaces of the positive electrode active material particles.Type: ApplicationFiled: December 28, 2012Publication date: May 14, 2015Applicant: SANYO ELECTRIC CO., LTD.Inventors: Atsushi Ogata, Takeshi Ogasawara, Yasufumi Takahashi, Motoharu Saito, Masaki Hirase, Katsunori Yanagida, Masahisa Fujimoto
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Publication number: 20150125760Abstract: There is provided an improvement for capacitors having activated carbon electrodes by the use of an electrolyte solution containing a carbonate of the formula RO(C?O)OR1 and a conductive salt such as a lithium salt or a quaternary ammonium salt at a concentration of from 0.6 to 3 mol/l.Type: ApplicationFiled: November 6, 2013Publication date: May 7, 2015Inventors: W. Novis Smith, Joel R. McCloskey
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Publication number: 20150125759Abstract: An energy storage device comprising: (A) an anode comprising graphite; and (B) an electrolyte composition comprising: (i) at least one carbonate solvent; (ii) an additive selected from CsPF6, RbPF6, Sr(PF6)2, Ba(PF6)2, or a mixture thereof; and (iii) a lithium salt.Type: ApplicationFiled: January 12, 2015Publication date: May 7, 2015Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Wu Xu, Hongfa Xiang, Jiguang Zhang, Ruiguo Cao
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Publication number: 20150125761Abstract: The present invention includes [1] a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a specified acyclic lithium salt in the nonaqueous electrolytic solution and being capable of improving electrochemical characteristics in a broad temperature range; and [2] an energy storage device including a positive electrode, a negative electrode, and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a specified acyclic lithium salt in the nonaqueous electrolytic solution.Type: ApplicationFiled: May 13, 2013Publication date: May 7, 2015Applicant: UBE INDUSTRIES, LTD.Inventors: Kei Shimamoto, Yuichi Kotou, Shoji Shikita
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Patent number: 9023537Abstract: A positive electrode includes: a positive electrode collector; and a positive electrode active material layer provided on the positive electrode collector and containing a positive electrode active material and an alkaline earth metal carbonate having a fixed form.Type: GrantFiled: April 6, 2011Date of Patent: May 5, 2015Assignee: Sony CorporationInventors: Kentaro Yoshimura, Toru Odani, Tadahiko Kubota
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Publication number: 20150118581Abstract: A rechargeable lithium ion battery including a negative active material, the negative active material including a carbon-based active material, and an electrolyte solution that includes a S?O-containing compound, the S?O-containing compound having a structure that is selected according to a G band/D band ratio of the carbon-based active material.Type: ApplicationFiled: October 28, 2014Publication date: April 30, 2015Inventors: Hironari TAKASE, Hokuto YOKOTSUJI
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Publication number: 20150118580Abstract: What is disclosed is a non-aqueous electrolyte for non-aqueous electrolyte battery including a non-aqueous solvent and at least lithium hexafluorophosphate as a solute. This electrolyte is characterized by containing at least one siloxane compound represented by the general formula (1) or the general formula (2). This electrolyte has a storage stability which is improved than electrolytes prepared by adding conventional siloxane compounds.Type: ApplicationFiled: June 10, 2013Publication date: April 30, 2015Inventors: Yuki Kondo, Makoto Kubo, Takayoshi Morinaka, Kenta Yamamoto
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Publication number: 20150118579Abstract: The present invention provides an electrolytic solution for a nonaqueous electrolyte battery and a nonaqueous electrolyte battery having excellent cycle characteristics and high-temperature storage characteristics without causing hydrolysis of a fluorine-containing lithium salt, such as LiPF6, contained as a solute and containing a less amount of free fluorine ions, as well as a method of producing the electrolytic solution for a nonaqueous electrolyte battery.Type: ApplicationFiled: May 29, 2013Publication date: April 30, 2015Inventors: Yuki Kondo, Keita Nakahara, Satoshi Muramoto, Takayoshi Morinaka
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Publication number: 20150118575Abstract: A rechargeable lithium battery including a negative electrode including a negative active material, a positive electrode, and an electrolyte solution including an additive, wherein the negative active material includes a Si-based material included in an amount of about 1 to about 70 wt % based on the total amount of the negative electrode, and the additive includes fluoroethylene carbonate and a compound represented by Chemical Formula 1. In the above Chemical Formula 1, R1 to R3 are each independently a substituted or unsubstituted C2 to C5 alkylene group.Type: ApplicationFiled: September 4, 2014Publication date: April 30, 2015Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Hyun Eom, Myung-Hoon Kim, Seung-Tae Lee, Ae-Ran Kim, Dong-Myung Choi, Ha-Rim Lee
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Patent number: 9012096Abstract: The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In certain electrolytes, the alkali metal salt is a bis(chelato)borate and the additives include substituted or unsubstituted linear, branched or cyclic hydrocarbons comprising at least one oxygen atom and at least one aryl, alkenyl or alkynyl group. In other electrolytes, the additives include a substituted aryl compound or a substituted or unsubstituted heteroaryl compound wherein the additive comprises at least one oxygen atom. There are also provided methods of making the electrolytes and batteries employing the electrolytes. The invention also provides for electrode materials.Type: GrantFiled: January 24, 2006Date of Patent: April 21, 2015Assignee: UChicago Argonne, LLCInventors: Khalil Amine, Jun Liu, Donald R. Vissers, Wenquan Lu
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Publication number: 20150104717Abstract: Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyt, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Applicant: LG CHEM, LTD.Inventors: Young Soo Kim, Soon Ho Ahn, Joon Sung Bae, Cha Hun Ku, Soo Hyun Ha, Duk Hyun Ryu, Sei Lin Yoon
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Patent number: 9005824Abstract: There is provided a lithium secondary battery including a positive electrode, a negative electrode, a nonaqueous electrolyte liquid and a separator, that is subjected to a constant-current constant-voltage charge with a stop voltage of more than 4.25V before its use. The lithium secondary battery uses the nonaqueous electrolyte liquid having contained 0.1 to 5 mass % of a phosphonoacetate compound represented by the following general formula (1), and having contained 0.1 to 5 mass % of 1,3-dioxane. In General Formula (1), each of R1, R2 and R3 is independently hydrocarbon groups having a carbon number of 1 to 12 with or without substituent of a halogen atom, and n is 0 to 6 integers.Type: GrantFiled: June 21, 2013Date of Patent: April 14, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Yuta Kawamoto, Haruki Kamizori, Yusuke Nakamura, Masayuki Yamada, Itaru Gosho
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Publication number: 20150099193Abstract: A lithium ion secondary battery that operates at a high voltage, has a high cycle life, and generates less gas, and an electrolytic solution for such a lithium ion secondary battery. An electrolytic solution for a non-aqueous energy storage device, comprising: a non-aqueous solvent; a lithium salt (A) having no boron atom; a predetermined lithium salt (B) containing a boron atom; and a compound (C) in which at least one of hydrogen atoms in an acid selected from the group consisting of proton acids having a phosphorus atom and/or a boron atom, sulfonic acids, and carboxylic acids is replaced with a substituent represented by formula (3): wherein R3, R4, and R5 each independently represent an organic group which has 1 to 10 carbon atoms and which may have a substituent.Type: ApplicationFiled: October 4, 2013Publication date: April 9, 2015Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Shinya Hamasaki, Aya Inaba, Keiko Sumino, Yusuke Shigemori, Gang Cheng, Steven S. Kaye, Bin Li
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Patent number: 8999589Abstract: A positive electrode active material has an average particle diameter of 4.5 to 15.5 ?m and a specific surface area of 0.13 to 0.80 m2/g. A positive electrode mixture layer contains a silane coupling agent and/or at least one of aluminum, titanium, or zirconium based coupling agent having an alkyl or alkoxy groups having 1 to 18 carbon atoms at a content of 0.003% by mass or more and 5% by mass or less with respect to the mass of the positive electrode active material. The nonaqueous electrolyte contains a fluorinated cyclic carbonate esters at a content of 0.3% by mass or more with respect to the total mass of the nonaqueous electrolyte. Thus the nonaqueous secondary battery in which, when used with a nonaqueous electrolyte containing a fluorinated cyclic carbonate esters, cycle characteristics are good and nail penetration characteristics are superior is provided.Type: GrantFiled: December 13, 2010Date of Patent: April 7, 2015Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
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Publication number: 20150093653Abstract: A lithium ion rechargeable battery cell includes an anode having electroactive material-containing particles wherein the electroactive material is selective from one or more of silicon, germanium, and tin. A cathode includes an active material adapted to incorporate lithium and also to liberate lithium electrochemically. The anode is adapted to incorporate lithium during lithiation. Also provided is an electrolyte, wherein the electrolyte includes both a cyclic carbonate having a vinyl group and a fluorinated cyclic carbonte. The total amount of the cyclic carbonate including a vinyl group and the fluorinated cyclic carbonate together is in the range of 3.5 wt % to 70 wt % based on the total weight of the electrolyte solution.Type: ApplicationFiled: December 11, 2014Publication date: April 2, 2015Applicant: NEXEON LTD.Inventors: Fazlil Coowar, Mamdouh Elsayed Abdelsalam, Michael Jonathan Lain
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Publication number: 20150084604Abstract: An improved lithium-sulfur battery containing a surface-functionalized carbonaceous material. The presence of the surface-functionalized carbonaceous material generates weak chemical bonds between the functional groups of the surface-functionalized carbonaceous material and the functional groups of the polysulfides, which prevents the polysulfide migration to the battery anode, thereby providing a battery with relatively high energy density and good partial discharge efficiency.Type: ApplicationFiled: September 26, 2013Publication date: March 26, 2015Applicant: EAGLEPICHER TECHNOLOGIES, LLCInventors: Ramanathan THILLAIYAN, Wujun FU, Mario DESTEPHEN, Greg MILLER, Ernest NDZEBET, Umamaheswari JANAKIRAMAN
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Publication number: 20150084603Abstract: An improved electrolyte including a strontium additive suitable for lithium-sulfur batteries, a battery including the electrolyte, and a battery including a separator containing a strontium additive are disclosed. The presence of the strontium additive reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance.Type: ApplicationFiled: September 26, 2013Publication date: March 26, 2015Applicant: EAGLEPICHER TECHNOLOGIES, LLCInventors: Ramanathan THILLAIYAN, Wujun FU, Mario DESTEPHEN, Greg MILLER
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Publication number: 20150079484Abstract: The present disclosure relates to additives for electrolytes and preparation of aluminum-based, silicon-based, and bismuth-based additive compounds that can be used as additives or solutes in electrolytes and test results in various electrochemical devices. The inclusion of these aluminum, silicon, and bismuth compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise unsuitable with current electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for Li-ion chemistries. The application of these compounds goes beyond Li-ion battery technology and covers any electrochemical device that employs electrolytes for the benefit of high energy density resultant from high operating voltages.Type: ApplicationFiled: September 17, 2013Publication date: March 19, 2015Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Arthur von Wald Cresce, Kang Conrad Xu
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Publication number: 20150079483Abstract: The present disclosure relates to several families of commercially available oxirane compounds that can be used as electrolyte co-solvents, solutes, or additives in non-aqueous electrolyte and their test results in various electrochemical devices. The presence of these compounds can enable rechargeable chemistries at high voltages. These compounds were chosen for their beneficial effect on the interphasial chemistries that occur at high potentials on the classes of 5.0V cathodes used in experimental Li-ion systems.Type: ApplicationFiled: September 16, 2013Publication date: March 19, 2015Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Arthur von Wald Cresce, Kang Conrad Xu
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Publication number: 20150079482Abstract: The present invention provides an electrolyte for a Li storage battery comprising a compound that can improve safety of a storage battery without causing the degradation in performances thereof and a Li storage battery comprising the electrolyte. The electrolyte comprises at least 1,1-diphenylethane the Li storage battery comprises the electrolyte. Particularly preferably provided are an electrolyte for a Li storage battery comprising 1,1-diphenylethane, a cyclic carbonate (e.g., ethylene carbonate), a chain carbonate (e.g., dimethyl carbonate, diethyl carbonate, ethyl methyl or ethylmethyl carbonate) and a Li salt and a Li storage battery comprising such an electrolyte.Type: ApplicationFiled: February 26, 2013Publication date: March 19, 2015Applicant: JX Nippon Oil & Energy CorporationInventors: Atsuo Omaru, Takeshi Nishizawa
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Patent number: 8980214Abstract: A difluorophosphate effective as an additive for a nonaqueous electrolyte for secondary battery is produced by a simple method from inexpensive common materials. The difluorophosphate is produced by reacting lithium hexafluorophosphate with a carbonate in a nonaqueous solvent. The liquid reaction mixture resulting from this reaction is supplied for providing the difluorophosphate in a nonaqueous electrolyte comprising a nonaqueous solvent which contains at least a hexafluorophosphate as an electrolyte lithium salt and further contains a difluorophosphate. Also provided is a nonaqueous-electrolyte secondary battery employing this nonaqueous electrolyte.Type: GrantFiled: October 31, 2005Date of Patent: March 17, 2015Assignee: Mitsubishi Chemical CorporationInventors: Ryoichi Kato, Hirofumi Suzuki, Jun Sasahara, Hitoshi Suzuki
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Publication number: 20150072220Abstract: Provided are a lithium secondary battery wherein gas generation associated with charging and discharging can be suppressed even in case where silicon and silicon oxide are contained as negative electrode active materials, and wherein deformation due to the gas generation can be suppressed even in case where a resin film is used as an outer package; and a method for manufacturing the lithium secondary battery. A lithium secondary battery comprises a negative electrode containing a negative electrode active material, a positive electrode containing a positive electrode active material, and an electrolytic solution used to immerse the negative electrode active material and the positive electrode active material, wherein the negative electrode active material contains silicon and silicon oxide that have been subjected to a reduction treatment.Type: ApplicationFiled: March 22, 2013Publication date: March 12, 2015Applicant: NEC CORPORATIONInventors: Tetsuya Kajita, Jiro Iriyama, Shin Serizawa
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Publication number: 20150072247Abstract: An electrolyte for a lithium battery, a lithium battery including the electrolyte, and a method of preparing the electrolyte for a lithium battery. The electrolyte for a lithium battery includes a non-aqueous organic solvent; and about 0.1 wt % to about 1 wt % of lithium nitrate (LiNO3) based on a total weight of the non-aqueous organic solvent. By using the electrolyte for a lithium battery, lifespan cycle properties of the lithium battery may be improved.Type: ApplicationFiled: July 28, 2014Publication date: March 12, 2015Inventors: In-Haeng Cho, Ha-Rim Lee, Sang-Hoon Kim, Woo-Cheol Shin, Jung-Hyun Nam
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Publication number: 20150072249Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 ?mol to 40 ?mol per g of a weight of the negative electrode material layer.Type: ApplicationFiled: September 3, 2014Publication date: March 12, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Dai Yamamoto, Yuki Watanabe, Hidesato Saruwatari, Kazuya Kuriyama, Hideki Satake
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Publication number: 20150064549Abstract: A rechargeable battery cell having a specific combination of anode, cathode and electrolyte formulation is provided. The electrolyte formulation includes an additive system and a salt system. The additive system includes a first additive containing a sulfonyl group, an anti-gassing agent, and a second additive. The salt system includes a lithium salt and a co-salt. The disclosed electrolyte formulation has reduced gassing and improved performance over a wide temperature range.Type: ApplicationFiled: November 7, 2014Publication date: March 5, 2015Inventors: Leslie J. Pinnell, Christopher Campion, Antoni S. Gozdz, Jeong Ju Cho
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Publication number: 20150064577Abstract: A lithium ion secondary battery includes a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein the positive electrode contains, as a positive electrode active material, a lithium-containing transition metal compound that belongs to space group Fd3-m and that contains lithium and transition metal M (M represents Mo, or Mo and at least one selected from the group consisting of Mn, Co, Ni, W, and V), a molar ratio of the lithium to the transition metal M is 2.7 or more and 3.3 or less, and a ratio of a mass of the lithium-containing transition metal compound to a total mass of the positive electrode active material in the positive electrode is 0.8 or more.Type: ApplicationFiled: August 1, 2014Publication date: March 5, 2015Inventors: RYUICHI NATSUI, KENSUKE NAKURA
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Patent number: 8968940Abstract: A compound has general Formula I, II, III, or IV: where X and Y are independently a group of Formula (A): and Z a group of Formula (B): The compounds may be used in electrolytes and electrochemical devices.Type: GrantFiled: May 24, 2011Date of Patent: March 3, 2015Assignee: UChicago Argonne, LLCInventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine, Zonghai Chen
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Patent number: 8968922Abstract: In one aspect, a rechargeable lithium battery including a positive electrode having a positive active material, a negative electrode having a negative active material, and an electrolyte is provided. The positive active material can include manganese-based oxide, and the electrolyte can include fluoroethylene carbonate, lithium bis(oxalato)borate, and tris(trialkylsilyl)borate.Type: GrantFiled: January 11, 2012Date of Patent: March 3, 2015Assignee: Samsung SDI Co., LtdInventors: Jin-Hyunk Lim, Ho-Seok Yang, Man-Seok Han, Mi-Hyeun Oh
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Patent number: 8968920Abstract: Organic electrolyte solutions and lithium batteries employing the same are provided. In one embodiment, an organic electrolyte solution includes a silane compound. The inventive organic electrolyte solutions prevent crack formation caused by volumetric changes in the anode active material during charging/discharging of the battery. This improves charge/discharge characteristics, resulting in improved battery stability, reliability, and charge/discharge efficiency, which is a dramatic improvement over conventional organic electrolyte solutions, which have higher irreversible capacities due to the decomposition of polar solvents.Type: GrantFiled: August 31, 2007Date of Patent: March 3, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Seok-soo Lee, Young-gyoon Ryu, Han-su Kim, Nina K. Gusarova
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Patent number: 8962192Abstract: A nonaqueous electrolytic solution that can provide a battery that is low in gas generation, has a large capacity, and is excellent in storage characteristics and cycle characteristics contains an electrolyte and a nonaqueous solvent dissolving the electrolyte and further contains 0.001 vol % or more and less than 1 vol % of a compound represented by Formula (1) in the nonaqueous solvent. Alternatively, the nonaqueous electrolytic solution contains 0.001 vol % or more and less than 5 vol % of a compound represented by Formula (1) in the nonaqueous solvent and further contains at least one compound selected from the group consisting of cyclic carbonate compounds having carbon-carbon unsaturated bonds, cyclic carbonate compounds having fluorine atoms, monofluorophosphates, and difluorophosphates. In Formula (1), R1 to R3 each independently represent an alkyl group of 1 to 12 carbon atoms, which may be substituted by a halogen atom; and n represents an integer of 0 to 6.Type: GrantFiled: March 17, 2008Date of Patent: February 24, 2015Assignee: Mitsubishi Chemical CorporationInventors: Minoru Kotato, Shinichi Kinoshita
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Publication number: 20150050561Abstract: A lithium ion cell includes a cathode including a cathode active material having an operating voltage of 4.6 volts or greater; an anode including an anode material and a lithium additive including a lithium metal foil, lithium alloy, or an organolithium material; a separator; and an electrolyte.Type: ApplicationFiled: August 16, 2013Publication date: February 19, 2015Applicant: UChicago Argonne, LLCInventors: Zhengcheng Zhang, Libo Hu, Khalil Amine, Christopher S. Johnson
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Publication number: 20150050564Abstract: Providing a secondary battery maintaining the cyclability at room temperature and additionally being able to inhibit the cyclability from declining when being employed at high temperature. A secondary battery includes a positive electrode including a positive-electrode active material, a negative-electrode including a negative-electrode active material, and an electrolytic solution, wherein the positive electrode and/or the negative electrode includes a binding agent containing an organic/inorganic hybrid material having an organic segment including a resin, and an inorganic segment including silica, the organic/inorganic hybrid material binding the positive-electrode active material and/or the negative-electrode active material, and the electrolytic solution includes a fluorine-containing cyclic carbonate containing at least one fluorine atom.Type: ApplicationFiled: November 21, 2012Publication date: February 19, 2015Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Kayo Mizuno, Keiichi Hayashi, Yoshikatsu Kawabata, Yusuke Sugiyama
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Patent number: 8956769Abstract: A non-aqueous electrolyte solution includes an electrolyte solution including an amide compound and a lithium salt, and a dinitrile compound substituted by a hetero atom at a main chain, and a lithium secondary battery includes the non-aqueous electrolyte solution. By using the non-aqueous electrolyte solution, a lithium secondary battery having an improved swelling phenomenon and an increased charging/discharging performance may be provided.Type: GrantFiled: January 31, 2013Date of Patent: February 17, 2015Assignee: LG Chem, Ltd.Inventors: Byoung Bae Lee, Jae Seung Oh, Yeon Suk Hong, You Jin Shim, Min Ah Kim
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Publication number: 20150044573Abstract: The invention relates to lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate, the use of lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate as electrolyte salt in lithium-based energy stores and also ionic liquids comprising 1-trifluoro-methoxy-1,2,2,2-tetrafluoro-ethanesulphonate as anion.Type: ApplicationFiled: February 27, 2013Publication date: February 12, 2015Inventors: Gerd-Volker Röschenthaler, Martin Winter, Stefano Passerini, Katja Vlasov, Nataliya Kalinovich, Christian Schreiner Schreiner, Raphael Wilhelm Schmitz, Ansgar Romek Müller, Rene Schmitz, Tanja Schedlbauer, Alexandra Lex-Balducci, Miriam Kunze
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Publication number: 20150037691Abstract: An electrolyte may include compounds of general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z? is a linkage between X and Y, and at least one of R8, R9, R10, and R11 is other than H.Type: ApplicationFiled: October 21, 2014Publication date: February 5, 2015Inventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
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Patent number: 8945780Abstract: A nonaqueous electrolyte includes: a nonaqueous solvent containing 0.1% by volume or more and not more than 50% by volume of at least one member selected from the group consisting of a halogen element-containing chain carbonate represented by the following formula (1) and a halogen element-containing cyclic carbonate represented by the following formula (2); and an electrolyte salt containing a compound represented by the following formula (3) in an amount of 0.001 moles/L or more and not more than 0.Type: GrantFiled: January 11, 2011Date of Patent: February 3, 2015Assignee: Sony CorporationInventors: Toru Odani, Tadahiko Kubota
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Publication number: 20150030939Abstract: The invention relates to the use of lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate as a conductive salt in lithium-based energy stores and to electrolytes containing lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate.Type: ApplicationFiled: February 27, 2013Publication date: January 29, 2015Inventors: Marius Amereller, René Schmitz, Raphael Wilhelm Schmitz, Ansgar Romek Müller, Martin Winter, Christian Schreiner, Miriam Kunze, Stefano Passerini
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Patent number: 8940443Abstract: An electrolyte comprising an organic solvent, a lithium salt, and a polymer additive comprised of repeating vinyl units joined to one or more heterocyclic amine moieties is described. The heterocyclic amine contains five to ten ring atoms, inclusive. An electrochemical cell is also disclosed. The preferred cell comprises a negative electrode which intercalates with lithium, a positive electrode comprising an electrode active material which intercalates with lithium, and the electrolyte of the present invention activating the negative and the positive electrodes.Type: GrantFiled: November 14, 2008Date of Patent: January 27, 2015Assignee: Greatbatch Ltd.Inventor: Chi-Kyun Park
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Publication number: 20150024282Abstract: In an aspect, a lithium secondary battery including a compound as disclosed and described herein; and an electrolyte for a lithium secondary battery including a non-aqueous organic solvent and a lithium salt is provided.Type: ApplicationFiled: June 24, 2014Publication date: January 22, 2015Inventors: Ha-Rim Lee, Sang-Hoon Kim, In-Haeng Cho
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Publication number: 20150024284Abstract: The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds.Type: ApplicationFiled: September 30, 2014Publication date: January 22, 2015Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Kanako TAKIGUCHI, Masamichi Onuki, Minoru Kotato, Ryo Yamaguchi, Takeshi Nakamura, Takayuki Aoshima
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Publication number: 20150024121Abstract: A process for producing a separator-electrolyte layer for use in a lithium battery, comprising: (a) providing a porous separator; (b) providing a quasi-solid electrolyte containing a lithium salt dissolved in a first liquid solvent up to a first concentration no less than 3 M; and (c) coating or impregnating the separator with the electrolyte to obtain the separator-electrolyte layer with a final concentration ?the first concentration so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of that of the first liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point. A battery using such a separator-electrolyte is non-flammable and safe, has a long cycle life, high capacity, and high energy density.Type: ApplicationFiled: July 22, 2013Publication date: January 22, 2015Inventors: Hui He, Bor Z. Jang, Yanbo Wang, Aruna Zhamu
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Publication number: 20150024267Abstract: The present invention relates to an electrolyte having improved high-rate charge and discharge property, and a capacitor comprising the same, and more particularly to an electrolyte having improved high-rate charge and discharge property comprising an aromatic compound, which comprises at least one compound of the following Chemical Formula 1 to Chemical Formula 11 that can induce resonance effect of electron movement, and which is a substituted organic compound in which a functional group is present at a location that can structurally prevent local polarization effect, and the boiling point of which is 80° C. or higher, wherein R in the Chemical Formula 1 to Chemical Formula 11 is at least one functional group selected from the alkyl group consisting of methyl, ethyl, propyl and butyl, and a capacitor comprising the same.Type: ApplicationFiled: September 30, 2014Publication date: January 22, 2015Inventor: Cheol Soo JUNG
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Patent number: 8932768Abstract: A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material is a lithium molybdenum composite transition metal oxide material and is prepared by mixing in a solid state an intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain the lithium molybdenum composite transition metal oxide cathode material.Type: GrantFiled: April 16, 2013Date of Patent: January 13, 2015Assignee: UChicago Argonne, LLCInventors: Sang-Ho Park, Khalil Amine
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Patent number: 8927156Abstract: An embodiment of the present invention relates to a power storage device which includes a positive electrode having a positive-electrode current collector with a plurality of first projections, a first insulator provided over each of the plurality of first projections, and a positive-electrode active material provided on a surface of the first insulator and the positive-electrode current collector with the plurality of first projections; a negative electrode having a negative-electrode current collector with a plurality of second projections, a second insulator provided over each of the plurality of second projections, and a negative-electrode active material provided on a surface of the second insulator and the negative-electrode current collector with the plurality of second projections; a separator provided between the positive electrode and the negative electrode; and an electrolyte provided in a space between the positive electrode and the negative electrode and containing carrier ions.Type: GrantFiled: February 3, 2010Date of Patent: January 6, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Konami Izumi
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Patent number: 8927159Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising an ester-based compound having a branched-chain alkyl group and an ester-based compound having a straight-chain alkyl group; and a lithium secondary battery using the same.Type: GrantFiled: July 3, 2013Date of Patent: January 6, 2015Assignee: LG Chem, Ltd.Inventors: Sung-Hoon Yu, Doo-Kyung Yang, Jong-Ho Jeon, Min-Jung Jou
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Publication number: 20150004501Abstract: A non-aqueous electrolyte including (i) a compound represented by the general formula X—R—SO2F??(1) where R is a C1-12 linear or branched alkylene group optionally containing an ether bond and optionally hydrogen atoms of the alkylene group are partly substituted by a fluorine atom(s); and X is a carboxylic acid derivative group), (ii) a non-aqueous solvent and (iii) an electrolyte salt.Type: ApplicationFiled: October 3, 2012Publication date: January 1, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Meiten Koh, Aoi Nakazono, Mayuko Taeda, Akiyoshi Yamauchi
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Publication number: 20140377667Abstract: The invention relates to lithium-2-methoxy-1,1,2,2-tetrafluoro-ethanesulfonate, to the use thereof as conductive salt in lithium-based energy accumulators, and ionic liquids comprising 2-methoxy-1,1,2,2-tetrafluoro-ethanesulfonate as an anion.Type: ApplicationFiled: July 25, 2012Publication date: December 25, 2014Applicants: JACOBS UNIVERSITY BREMEN gGMBH, WESTFALISCHE WILHELMS UNIVERSITAT MUNSTERInventors: Gerd-Volker Roschenthaler, Martin Winter, Katja Vlasov, Nataliya Kalinovich, Christian Schreiner, Raphael Wilhelm Schmitz, Romek Ansgar Muller, Rene Schmitz, Alexandra Lex-Balducci, Miriam Kunze
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Publication number: 20140356734Abstract: An electrolyte for a lithium ion secondary battery and a lithium ion secondary battery including the same are provide. The electrolyte includes a non-aqueous organic solvent, a lithium salt which is dissolved in the non-aqueous solvent and a additive shown as general formula I. Wherein R1, R2 and R3 are each independently selected from H, alkyl group including from 1 to 12 carbon atoms, cycloalkyl group including from 3 to 8 carbon atoms and aromatic group including 6 to 12 carbon atoms; n represents an integer from 0 to 7. This additive in electrolyte can passivate cathode and anode effectively, restrain their reaction with electrolyte, reduce gases generation and battery's expansion in high temperature surrounding, provide as safety lithium ion secondary batteries.Type: ApplicationFiled: May 31, 2013Publication date: December 4, 2014Inventors: Jianxun Ren, Chenghua Fu, Fenggang Zhao