TOP > 外国特許検索 > NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE BATTERY, METHOD FOR PRODUCING SAME, AND RECHARGEABLE BATTERY

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE BATTERY, METHOD FOR PRODUCING SAME, AND RECHARGEABLE BATTERY

外国特許コード F200010212
整理番号 (N18037)
掲載日 2020年8月4日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2019JP045770
国際公開番号 WO 2020105731
国際出願日 令和元年11月22日(2019.11.22)
国際公開日 令和2年5月28日(2020.5.28)
優先権データ
  • 特願2018-219705 (2018.11.22) JP
発明の名称 (英語) NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE BATTERY, METHOD FOR PRODUCING SAME, AND RECHARGEABLE BATTERY
発明の概要(英語) This negative electrode active material for rechargeable battery comprises: a silicon composite containing a silicon compound and at least one carbon material selected from among graphite, graphitization-resistant carbon and soft carbon; a self-assembled monomolecular film which covers the surface of the silicon composite and which has an amino group; and a carbon compound containing carbon atoms as the principal component thereof, the carbon compound being bonded to the self-assembled monomolecular film with an amino group interposed therebetween.
従来技術、競合技術の概要(英語) BACKGROUND ART
Of the lithium ion battery to a high energy density, in place of the conventional graphite negative electrode material of the new material, such as silicon alloy material is drawing attention (for example, Non-Patent Document 1-3). Silicon, graphite is four times greater specific capacity than near the other hand, when the lithium ions of the large volume expansion. Therefore, the negative electrode of the secondary battery when using silicon as the material, charge-discharge cycles of the secondary battery of the active material particles with a fracture and, the contact failure between the conductive auxiliary agent known to cause a degradation of capacity. In addition, during the initial charging reaction of the film formation, further active material due to the fracture of the activation reaction, due to the occurrence of capacity due to the generation of the Li4SiO4 is disabled, the lithium ion in the positive electrode is reduced, deterioration of capacity which is known.
  • 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
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
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