Nitrogen Containing Organic Solvent Compound (e.g., Acetonitrile, Etc.) Patents (Class 429/339)
-
Patent number: 9012071Abstract: There is provided a lithium secondary battery which has excellent characteristics such as energy density and electromotive force and is excellent in cycle life and storage stability. An electrolyte solution for secondary battery comprising at least an aprotic solvent having an electrolyte dissolved therein and a compound represented by the general formula (1).Type: GrantFiled: December 10, 2012Date of Patent: April 21, 2015Assignee: NEC CorporationInventors: Koji Utsugi, Yuki Kusachi, Tsuyoshi Katou
-
Patent number: 8993178Abstract: A magnesium battery (10) is constituted of a negative electrode (1), a positive electrode (2) and an electrolyte (3). The negative electrode (1) is formed of metallic magnesium and can also be formed of an alloy. The positive electrode (2) is composed of a positive electrode active material, for example, a metal oxide, graphite fluoride ((CF)n) or the like, etc. The electrolytic solution (3) is, for example, a magnesium ion-containing nonaqueous electrolytic solution prepared by dissolving magnesium(II) chloride (MgCl2) and dimethylaluminum chloride ((CH3)2AlCl) in tetrahydrofuran (THF). In the case of dissolving and depositing magnesium by using this electrolytic solution, the following reaction proceeds in the normal direction or reverse direction.Type: GrantFiled: June 5, 2008Date of Patent: March 31, 2015Assignee: Sony CorporationInventors: Yuri Nakayama, Kenta Yamamoto, Yoshihiro Kudo, Hideki Oki
-
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
-
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
-
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
-
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
-
Patent number: 8968938Abstract: Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 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. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product.Type: GrantFiled: January 12, 2007Date of Patent: March 3, 2015Assignee: 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
-
Publication number: 20150050563Abstract: A new electrolytic solution system for lithium secondary batteries. Provided is a lithium secondary battery electrolytic solution containing a nonaqueous solvent and a lithium salt. The nonaqueous solvent is mixed at an amount of not more than 3 mol with respect to 1 mol of the lithium salt.Type: ApplicationFiled: March 25, 2013Publication date: February 19, 2015Applicant: THE UNIVERSITY OF TOKYOInventors: Yuki Yamada, Atsuo Yamada, Makoto Yaegashi, Haosheu Zhou, Fujun Li
-
Publication number: 20150050565Abstract: An electrochemical cell is provided that includes at least one electrode that includes a magnesium intercalation compound. The provided electrochemical cell also includes an electrolyte that includes a fluorinated imide salt or a fluorinated methide salt substantially dissolved in an oxidatively stable solvent. The oxidatively stable solvent comprises a nitrile group and in some embodiments can include acetonitrile or adiponitrile.Type: ApplicationFiled: February 6, 2013Publication date: February 19, 2015Inventors: William M Lamanna, Tuan T Tran, Mark N. Obrovac
-
Publication number: 20150050560Abstract: The present invention relates to silicone epoxy compositions, methods for making same and uses therefore. In one embodiment, the silicone epoxy ether compositions of the present invention are silane epoxy polyethers that contain at least one epoxy functionality. In another embodiment, the silicone epoxy ether compositions of the present invention are siloxane epoxy polyethers that contain at least one epoxy functionality. In still another embodiment, the present invention relates to silicone epoxy polyether compositions that are suitable for use as an electrolyte solvent in a lithium-based battery, an electrochemical super-capacitors or any other electrochemical device.Type: ApplicationFiled: January 10, 2013Publication date: February 19, 2015Inventors: Neeraj Gupta, Karthikeyan Sivasubramanian, Monjit Phukan
-
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
-
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
-
Patent number: 8940434Abstract: Disclosed are an additive for a rechargeable lithium battery electrolyte including an aromatic compound having an isothiocyanate group (—NCS), and an electrolyte and rechargeable lithium battery including the same.Type: GrantFiled: March 14, 2013Date of Patent: January 27, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Makhmut Khasanov, Woo-Cheol Shin, Denis Chernyshov, Alexey Tereshchenko, Vladimir Egorov, Pavel Shatunov
-
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
-
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
-
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
-
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
-
Publication number: 20140377666Abstract: A non-aqueous liquid electrolyte for a secondary battery, containing: at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound; an aromatic ketone compound; an organic solvent; and an electrolyte salt, in which, with respect to 100 parts by mass of the organic solvent, the aromatic ketone compound is 0.001 to 10 parts by mass and the at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound is 0.001 to 10 parts by mass, and more than 50% by mass of the whole amount of the organic solvent is composed of a solvent with a melting point of 10° C. or less.Type: ApplicationFiled: September 5, 2014Publication date: December 25, 2014Applicant: FUJIFILM CORPORATIONInventors: Kunihiko KODAMA, Michio ONO, Ikuo KINOSHITA
-
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
-
Patent number: 8906559Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; and an additive including vinylene carbonate, fluoroethylene carbonate, and a nitrile-based compound represented by Formula 1: wherein n ranges from 1 to 12 and R1 and R2 are independently a halogen, a hydrogen, or an alkyl group. Further, the alkyl group can be CmH(2m+1), in which m ranges from 1 to 10. The electrolyte for a rechargeable lithium battery improves storage stability of the rechargeable lithium battery at a high temperature. And, a rechargeable lithium battery including the electrolyte has improved storage stability.Type: GrantFiled: June 19, 2007Date of Patent: December 9, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Euy-Young Jung, Duck-Chul Hwang, Jong-Hwa Lee, In-Tae Mun, Sae-Weon Roh, So-Hyun Hur, Yong-Chul Park, Jeom-Soo Kim, Jae-Yul Ryu
-
NITRILE-SUBSTITUTED SILANES AND ELECTROLYTE COMPOSITIONS AND ELECTROCHEMICAL DEVICES CONTAINING THEM
Publication number: 20140356735Abstract: Described herein are liquid, organosilicon compounds that including a substituent that is a cyano (—CN), cyanate (—OCN), isocyanate (—NCO), thiocyanate (—SCN) or isothiocyanate (—NCS). The organosilicon compounds are useful in electrolyte compositions and can be used in any electrochemical device where electrolytes are conventionally used.Type: ApplicationFiled: June 4, 2014Publication date: December 4, 2014Inventors: Jose Adrian Pena Hueso, David Osmalov, Jian Dong, Monica Usrey, Michael Pollina, Robert C. West -
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
-
Publication number: 20140356733Abstract: Provided are an additive for a lithium battery electrolyte, wherein the additive is an ethylene carbonate based compound represented by the following Formula 1 or 2, an organic electrolyte solution including the additive, and a lithium battery including the organic electrolyte solution: in the above Formulae, R1, R2, R3, and R4 are each independently a non-polar functional group or a polar functional group, the polar functional group including a heteroatom belonging to groups 13 to 16 of the periodic table of elements, and one or more of R1, R2, R3, and R4 are the polar functional groups.Type: ApplicationFiled: May 5, 2014Publication date: December 4, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Makhmut Khasanov, Woo-Cheol Shin, Vladimir Egorov, Pavel Alexandrovich Shatunov, Denis Chernyshov, Sang-Hoon Kim, Ha-Rim Lee, In-Haeng Cho, Alexey Tereshchenko
-
Publication number: 20140342249Abstract: A rechargeable lithium metal or lithium-ion cell comprising a cathode having a cathode active material and/or a conductive supporting structure, an anode having an anode active material and/or a conductive supporting nano-structure, a porous separator electronically separating the anode and the cathode, a highly concentrated electrolyte in contact with the cathode active material and the anode active material, wherein the electrolyte contains a lithium salt dissolved in an ionic liquid solvent with a concentration greater than 3 M. The cell exhibits an exceptionally high specific energy, a relatively high power density, a long cycle life, and high safety with no flammability.Type: ApplicationFiled: May 16, 2013Publication date: November 20, 2014Inventors: Hui He, Bor Z Jang, Yanbo Wang, Aruna Zhamu
-
Publication number: 20140335427Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the electrolyte are provided. The electrolyte includes a compound represented by Formula 1 below; a nonaqueous organic solvent; and a lithium salt: wherein, in Formula 1, R1, R2, R3, and R4 are each independently a unsubstituted or substituted C1-C20 alkoxy group, a unsubstituted or substituted C1-C20 alkoxyalkyleneoxy group, a unsubstituted or substituted C6-C20 aryloxy group, or R—O—C(?O)— where R is a C1-C20 alkyl group, a C6-C20 aryl group, or a C1-C20 fluoroalkyl group.Type: ApplicationFiled: September 13, 2013Publication date: November 13, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Makhmut Khasanov, Vladimir Egorov, Pavel Alexandrovich Shatunov, Alexey Tereshchenko, Denis Chernyshov, Jung-Yi Yu, SANG-IL HAN, Sang-Hoon Kim, Duck-Hyun Kim, Myung-Hwan Jeong, Seung-Tae Lee, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, Moon-Sung Kim, In-Haeng Cho, E-Rang Cho, Dong-Myung Choi, Woo-Cheol Shin
-
Publication number: 20140315096Abstract: In some embodiments, the present disclosure pertains to energy storage compositions that comprise a clay and an ionic liquid. In some embodiments, the clay is a bentonite clay and the ionic liquid is a room temperature ionic liquid (RTIL). In some embodiments, the clay and the ionic liquid are present in the energy storage compositions of the present disclosure in a weight ratio of 1:1. In some embodiments, the ionic liquid further comprises a lithium-containing salt that is dissolved in the ionic liquid. In some embodiments, the energy storage compositions of the present disclosure further comprise a thermoplastic polymer, such as polyurethane. In some embodiments, the thermoplastic polymer constitutes about 10% by weight of the energy storage composition. In some embodiments, the energy storage compositions of the present disclosure are associated with components of energy storage devices, such as electrodes and separators.Type: ApplicationFiled: February 26, 2014Publication date: October 23, 2014Applicants: Universidade Federal de Minas Gerais, William Marsh Rice UniversityInventors: Raquel Silveira Borges, Kaushik Kalaga, Marco Tulio Fonseca Rodrigues, Hemtej Gullapalli, Leela Mohana Reddy Arava, Kaushik Balakrishnan, Glaura Goulart Silva, Pulickel M. Ajayan
-
Patent number: 8865353Abstract: A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, containing a hydantoin compound represented by the following general formula (I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution, and excellent in battery characteristics such as high-temperature storage property and cycle property. (In the formula, R1 and R2 each represent a methyl group or an ethyl group; R3 and R4 each represent a hydrogen atom, a methyl group or an ethyl group.Type: GrantFiled: August 4, 2009Date of Patent: October 21, 2014Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Masahide Kondo
-
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
-
Publication number: 20140272601Abstract: Salts with formula X?M+ wherein M+ is Li, Na, K, an ammonium, a phosphonium, an imidazolium, a pyridinium, or a pyrazolium and X? is an anion formed from covalent linking of two negative moieties to a positive onium-type core are provided. Also provided are electrolytes and batteries produced from these salts.Type: ApplicationFiled: November 16, 2012Publication date: September 18, 2014Inventors: Erlendur Jónsson, Michel Bernard Armand, Jens Patrik Johansson
-
Publication number: 20140255793Abstract: Functional electrolyte solvents include compounds having at least one aromatic ring with 2, 3, 4 or 5 substituents, at least one of which is a substituted or unsubstituted methoxy group, at least one of which is a tert-butyl group and at least one of which is a substituted or unsubstituted polyether or poly(ethylene oxide) (PEO) group bonded through oxygen to the aromatic ring, are provided.Type: ApplicationFiled: March 6, 2013Publication date: September 11, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
-
Publication number: 20140255796Abstract: A non-aqueous secondary battery including an electrolyte solution that contains a lithium salt and a non-aqueous solvent, a positive electrode, and a negative electrode, wherein a basis weight of a positive-electrode active material layer included in the positive electrode is 8 to 100 mg/cm2, and/or, a basis weight of a negative-electrode active material layer included in the negative electrode is 3 to 46 mg/cm2, and wherein the electrolyte solution has an ion conductivity at 25° C. of 15 mS/cm or more.Type: ApplicationFiled: October 25, 2012Publication date: September 11, 2014Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Naoki Matsuoka, Takehiro Koga, Hitoshi Shobukawa
-
Patent number: 8828610Abstract: Disclosed is an additive for an electrochemical cell wherein the additive includes an N—O bond. The additive is most preferably included in a nonaqueous electrolyte of the cell. Also disclosed are cells and batteries including the additive, and methods of charging the batteries and cells. An electrochemical cell including the additive preferably has an anode that includes lithium and a cathode including an electroactive sulfur-containing material.Type: GrantFiled: April 18, 2008Date of Patent: September 9, 2014Assignee: Sion Power CorporationInventor: Yuriy V. Mikhaylik
-
Patent number: 8828580Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.Type: GrantFiled: June 27, 2013Date of Patent: September 9, 2014Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
-
Patent number: 8822086Abstract: The invention provides a solvent for an electrolyte solution, an electrolyte solution, and a gel-like electrolyte superior in oxidation resistance and flame resistance. A solvent for an electrolyte solution comprising at least one boric ester represented by the following formula (I), and a boric ester represented by the following formula (II): B(ORf)3 (I); B(OCH2CH2CN)3 (II) wherein, in formula (I), each Rf independently represents CH2(CF2)nCF3 or CH(CF3)2, n is an integer from 0 to 6, and at least a part of each of —ORf and —OCH2CH2CN included in the boric esters is transesterified.Type: GrantFiled: September 28, 2010Date of Patent: September 2, 2014Assignee: National University Corporation Shizuoka UniversityInventors: Tatsuo Fujinami, Yasutaka Tanaka, Yasutoshi Iriyama
-
Publication number: 20140242474Abstract: Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion.Type: ApplicationFiled: March 11, 2013Publication date: August 28, 2014Applicant: PANASONIC CORPORATIONInventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
-
Publication number: 20140242472Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.Type: ApplicationFiled: May 14, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Yu-Ha An, Doo Kyung Yang, Chul-Haeng Lee, Young-Min Lim, Jong-Ho Jeon
-
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
-
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
-
Patent number: 8808918Abstract: The rechargeable lithium battery of the present invention includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte. The positive active material includes a core and a coating layer formed on the core. The core is made of a material such as LiCo0.98M?0.02O2, and the coating layer is made of a material such as MxPyOz. The electrolyte solution includes a nitrile-based additive. The rechargeable lithium battery of the present invention shows higher cycle-life characteristics and longer continuous charging time at high temperature.Type: GrantFiled: June 12, 2007Date of Patent: August 19, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Euy-Young Jung, Duck-Chul Hwang, Jeom-Soo Kim, Jong-Hwa Lee, Yong-Chul Park, Jae-Yul Ryu, So-Hyun Hur
-
Patent number: 8808404Abstract: A method for making a lithium battery or lithium ion battery having nitrogen silylated compounds as additives in a nonaqueous electrolytic solution. Batteries using this electrolytic solution have long cycle life and high capacity retention.Type: GrantFiled: August 1, 2012Date of Patent: August 19, 2014Assignee: BASF CorporationInventors: Wu Xu, Deng Zhongyi, Bolomey Pascal
-
Patent number: 8802300Abstract: A rechargeable lithium battery including a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte including a non-aqueous organic solvent and a lithium salt. The positive electrode has an active-mass density of about 3.7 to 4.1 g/cc, and the non-aqueous electrolyte includes a nitrile-based compound additive, a non-aqueous organic solvent, and a lithium salt.Type: GrantFiled: October 23, 2007Date of Patent: August 12, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Jong-Hwa Lee, Duck-Chul Hwang, Jeom-Soo Kim, Yong-Chul Park, Jae-Yul Ryu, Euy-Young Jung, So-Hyun Hur
-
Publication number: 20140220456Abstract: The present application is generally directed to energy storage materials such as activated carbon comprising enhanced particle packing properties and devices containing the same. The energy storage materials find utility in any number of devices, for example, in electric double layer capacitance devices and batteries. Methods for making the energy storage materials are also disclosed.Type: ApplicationFiled: January 8, 2014Publication date: August 7, 2014Applicant: EnerG2 Technologies, Inc.Inventors: Henry R. Costantino, Chad Goodwin, William D. Scott, Aaron M. Feaver
-
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
-
Patent number: 8795905Abstract: A family of electrolytes for use in a lithium ion battery. The genus of electrolytes includes ketone-based solvents, such as, 2,4-dimethyl-3-pentanone; 3,3-dimethyl 2-butanone(pinacolone) and 2-butanone. These solvents can be used in combination with non-Lewis Acid salts, such as Li2[B12F12] and LiBOB.Type: GrantFiled: June 30, 2009Date of Patent: August 5, 2014Assignee: Uchicago Argonne, LLCInventors: John Vaughey, Andrew N. Jansen, Dennis W. Dees
-
Patent number: 8795544Abstract: One object is to provide a power storage device including an electrolyte using a room-temperature ionic liquid which includes a univalent anion and a cyclic quaternary ammonium cation having excellent reduction resistance. Another object is to provide a high-performance power storage device. A room-temperature ionic liquid which includes a cyclic quaternary ammonium cation represented by a general formula (G1) below is used for an electrolyte of a power storage device. In the general formula (G1), one or two of R1 to R5 are any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, and a methoxyethyl group. The other three or four of R1 to R5 are hydrogen atoms. A? is a univalent imide anion, a univalent methide anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate (BF4?), or hexafluorophosphate (PF6?).Type: GrantFiled: June 23, 2011Date of Patent: August 5, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kyosuke Ito, Toru Itakura
-
Patent number: 8785055Abstract: Novel electric battery systems are disclosed utilizing selected ionic liquids as electrolytes and selected metals and metal oxides as electrodes. The ionic liquids utilize a substituted imidazolium cation, which does not have the corrosive safety and environmental concerns associated with corrosive acid and alkali electrolytes.Type: GrantFiled: September 7, 2010Date of Patent: July 22, 2014Assignee: The United States of America as Represented by the Secretary of the NavyInventor: Thomas E. Sutto
-
Patent number: 8785056Abstract: In one aspect, a rechargeable lithium battery including an electrolyte for the rechargeable lithium battery is provided. The electrolyte for the rechargeable lithium battery includes: a non-aqueous organic solvent; a lithium salt; and a compound represented by Chemical Formula 1.Type: GrantFiled: September 20, 2011Date of Patent: July 22, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Dai-In Park, Ho-Seok Yang, In-Haeng Cho
-
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
-
Publication number: 20140162143Abstract: It is an object of the present invention to provide an electrochemical device having an electrolytic solution having high current density and high oxidation resistance, as well as high safety, where dissolution and deposition of magnesium progress repeatedly and stably. The present invention relates to the electrolytic solution for an electrochemical device comprising (1) the supporting electrolyte composed of a magnesium salt and (2) at least one or more kinds of the compound represented by the following general formula [2], as well as the electrochemical device comprising said electrolytic solution, a positive electrode, a negative electrode and a separator.Type: ApplicationFiled: July 26, 2012Publication date: June 12, 2014Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Tsutomu Watahiki, Takahiro Kiyosu, Kuniaki Okamoto
-
Patent number: 8748043Abstract: Disclosed is an electrochemical cell comprising a lithium anode and a sulfur-containing cathode and a non-aqueous electrolyte. The cell exhibits high utilization of the electroactive sulfur-containing material of the cathode and a high charge-discharge efficiency.Type: GrantFiled: April 14, 2008Date of Patent: June 10, 2014Assignee: Sion Power CorporationInventor: Yuriy V. Mikhaylik