TOP > 外国特許検索 > LITHIUM COMPOSITE OXIDE, ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, SECONDARY BATTERY, AND METHOD FOR PRODUCING LITHIUM COMPOSITE OXIDE

LITHIUM COMPOSITE OXIDE, ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, SECONDARY BATTERY, AND METHOD FOR PRODUCING LITHIUM COMPOSITE OXIDE

外国特許コード F200010244
整理番号 (N18036)
掲載日 2020年10月30日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2020JP013685
国際公開番号 WO2020203652
国際出願日 令和2年3月26日(2020.3.26)
国際公開日 令和2年10月8日(2020.10.8)
優先権データ
  • 特願2019-069187 (2019.3.29) JP
発明の名称 (英語) LITHIUM COMPOSITE OXIDE, ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, SECONDARY BATTERY, AND METHOD FOR PRODUCING LITHIUM COMPOSITE OXIDE
発明の概要(英語) A lithium composite oxide (20) according to the present invention has a spinel structure, while having a chemical composition represented by general formula (1) wherein the atom A is in the cis configuration with respect to at least one Mn atom. (1): LiNi0.5Mn1.5O4-xAx (In general formula (1), 0 ≤ x ≤ 1; and A represents one or more elements selected from the group consisting of F, S, N, Cl and P.)
従来技術、競合技術の概要(英語) BACKGROUND ART
On the surfaces of a positive electrode and a negative electrode of a lithium ion battery, decomposition reaction by oxidation or reduction of an electrolyte, a lithium salt and an additive contained therein occurs. Through these decomposition reactions, each electrode is rendered non-conductive by forming a solid electrolyte interface (SEI) layer on the surface. The SEI layer stabilizes the electrode surface, but serves as a resistance layer against lithium ion transport at the interface with the electrolyte and electron conduction between active material particles, thereby increasing the resistance of the electrode surface.
(Patent Document 1) proposes complex anionization of the surface of an active material in order to solve both two conflicting problems of stabilization and high resistance of the surface of an electrode. For example, by converting the surface of the spinel LNMO material into oxyfluoride, the SEI layer can be thinned and an increase in surface resistance can be suppressed.
  • 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)
  • ZETTSU Nobuyuki
  • TESHIMA Katsuya
  • KIM Hyemin
  • SHIIBA Hiromasa
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 ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS 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
ライセンスをご希望の方、特許の内容に興味を持たれた方は、下記「問合せ先」まで直接お問い合わせください。

PAGE TOP

close
close
close
close
close
close