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LITHIUM COMPOSITE OXIDE, ELECTRODE MATERIAL FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SECONDARY BATTERY AND LITHIUM COMPOSITE OXIDE NEW コモンズ

外国特許コード F200010000
整理番号 (N17092)
掲載日 2020年1月29日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2019JP012053
国際公開番号 WO 2019188772
国際出願日 平成31年3月22日(2019.3.22)
国際公開日 令和元年10月3日(2019.10.3)
優先権データ
  • 特願2018-066581 (2018.3.30) JP
発明の名称 (英語) LITHIUM COMPOSITE OXIDE, ELECTRODE MATERIAL FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SECONDARY BATTERY AND LITHIUM COMPOSITE OXIDE NEW コモンズ
発明の概要(英語) This lithium composite oxide comprises crystalline oxide particles and a composite anionized layer disposed on the surface of the crystalline oxide particles to form a spinel structure. The lithium composite oxide is characterized by having a chemical composition represented by general formula (1), and characterized in that, in the composite anionized layer, at least some of terminal oxygen atoms at the crystal surface of crystalline oxide particles are substituted with one or more species of anions selected from the group consisting of a sulfur ion, a chlorine ion, a bromine ion, an iodine ion, a fluorine ion, and a nitrogen ion. General formula (1): LiNia-xMn2-a-yMx+yO4-bAb [00.4, 2-ay>1.4; M is one or more species of metal element selected from the group consisting of Ti, V, Cr, Fe, Co, Cu, Zu and Sn; A is one or more species of anions selected from the group consisting of a sulfur ion, a chlorine ion, a bromine ion, an iodine ion, a fluorine ion, and a nitrogen ion.]
従来技術、競合技術の概要(英語) BACKGROUND ART
The lithium composite oxide, a lithium secondary battery used as a positive electrode active material. The lithium secondary battery, such as a portable telephone or notebook personal computer has been the application has been put into practical use as a small power source. And power storage applications such as automotive applications further medium, or large applied in a power source has been attempted. In this way with the expansion of the application, to improve the performance of the lithium secondary battery is an important problem.
In recent years, used as a solid electrolyte as the electrolyte, the solid-state battery is a so-called research has been pursued. Solid-state battery electrode for the solid electrolytes as well, the particles constituting the electrode and electrolyte contact area of the interface between the particles is reduced. For this reason, in the case of using the electrolyte as the electrolyte as compared with the movement of lithium ions and electrons tends to be difficult to. Therefore, when considering the application of the solid-state battery, control the interface state becomes important. Non-Patent Document 1 is for example, molten salt and the solvent (flux method) using a crystal growth processes, suitable for the lithium ion conductive oxide is covered with the lithium ion-conductive material (positive, negative electrode active material and the solid electrolyte) of the single crystal particles were produced are described. Non-Patent Document 1 according to the method described, the rapid charge-discharge reaction of the lithium ion secondary battery in the test, significant performance improvement has been confirmed.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • SHINSHU UNIVERSITY
  • 発明者(英語)
  • TESHIMA Katsuya
  • ZETTSU Nobuyuki
  • KIM Daewook
  • KIM Hyemin
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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