TOP > 外国特許検索 > COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALL-SOLID-STATE SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, POSITIVE ELECTRODE, AND ALL-SOLID-STATE SECONDARY BATTERY

COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALL-SOLID-STATE SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, POSITIVE ELECTRODE, AND ALL-SOLID-STATE SECONDARY BATTERY

外国特許コード F180009390
整理番号 (S2016-1008-N0)
掲載日 2018年4月20日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP029731
国際公開番号 WO 2018038037
国際出願日 平成29年8月21日(2017.8.21)
国際公開日 平成30年3月1日(2018.3.1)
優先権データ
  • 特願2016-162003 (2016.8.22) JP
発明の名称 (英語) COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALL-SOLID-STATE SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, POSITIVE ELECTRODE, AND ALL-SOLID-STATE SECONDARY BATTERY
発明の概要(英語) This composite positive electrode active material for an all-solid-state secondary battery includes: a particulate positive electrode active material; and a sulfide-based solid electrolyte layer that covers the surface of the particulate positive electrode active material, wherein the composite positive electrode active material has an average roundness higher by 1.3 times than that of a positive electrode active material in the inner nucleus of the composite positive electrode active material.
特許請求の範囲(英語) [claim1]
1. In the form of particles that covers the surface of the positive electrode active material and the sulfide-based solid electrolyte layer of the all-solid secondary battery comprising a positive electrode active material and a composite, the composite cathode active material, the composite cathode active material the positive electrode active material of the inner cores compared, having an average circular degree of 1.3 times or more triturated Rave(here, having an average circular degree of triturated Raveis defined by the following formula (1) and (2) the value
:in the above formula, Npmeasure is the number of particles, Rjtriturated degree circle of individual particles, median () is the median values of the group of parentheses, r1, r2...rnmeasurement objects in the two-dimensional projection drawing particles 2 of a radius of curvature of the convex portions, n is the radius of curvature of the convex portion and the total number of the measurement target, rAof measurement objects corresponding to a circle of a radius of the particles.) A composite having a positive electrode active material.
[claim2]
2. And wherein the composite positive electrode active material and an abrasive having an average circular degree 0.3-1.0, the composite positive electrode active material of the nucleus in the positive electrode active material according to claim 1 triturated circle having the average of the 0.1-0.5 composite positive electrode active material.
[claim3]
3. A median diameter of the composite positive electrode active material, a positive electrode active material having a median diameter of the inner core of a medium-to-diameter ratio and is divided by 0.8-1.3, and, a composite positive electrode active material particle size distribution of the coefficient of variation, in the distribution of particle diameter of the positive electrode active material of the nucleus and a variation coefficient of the coefficient of variation is obtained by dividing the 0.5-2.0 ratio in the positive electrode active material composite according to claim 1.
[claim4]
4. The composite positive electrode active material, wherein the positive electrode active material and the solid electrolyte layer 100: 1-50 (mass ratio) of the positive electrode active material composite according to claim 1 proportion.
[claim5]
5. Wherein the positive electrode active material, having a median diameter of the composite according to claim 1 0.1-100μm the positive electrode active material.
[claim6]
6. Wherein the solid electrolyte layer, wherein the positive electrode active material according to claim 1 covering the surface of the composite positive electrode active material is 50% or more.
[claim7]
7. Wherein the positive electrode active material, the all-solid secondary battery according to charging and discharging of the metal ion insertion and can detach the composite positive electrode active material according to claim 1 material.
[claim8]
8. Wherein the positive electrode active material, an alkali metal Na or Li; (ii) Li, Na, mg, In, and Mn and a metal selected from cu, Sn, Si, Al, Ge, Sb and a compound of an element selected from the P; Li or Na (iii) and an element selected from Si and, Co,Ni,Mn,Al,Mg,Co,Fe,Zn,Ti,V including oxide, nitride or phosphate; V (iv), Mo, Fe and Ti is selected from a sulfide or an oxide of a metal; and (v) selected from graphite and hard carbon, wherein the solid electrolyte layer is, Li4-xGe1-xPxS4, Li2S-GeS2, Li7P3S11, Li6PS5Cl,Li3.833Sn0.833As0.166S4, Li10SnP2S12, Li2S-SiS2-Li3N,Li9.54Sn1.74P1.44S11.7Cl0.3, Li2S-SiS2, LiI-Li2S-SiS2, Li2S-SiS2-LixMOy(Mis Si,P,Ge,B,Al,Ga,In), LiI-Li2S-P2S5, LiI-Li2S-B2S3, Li3PO4-Li2S-Si2S,Li3PO4-Li2S-SiS2, LiPO4-Li2S-SiS,LiI-Li2S-P2O5, LiI-Li3PO4-P2S5and Li2S-P2S5lithium-based solid-state electrolyte; Na3PS4, Na2S-GeS2-Ga2S3, Na2S-GeS2, Na3Zr2Si2PO12, Na2S-SiS2, NaI-Na2S-SiS2, NaI-Na2S-P2S5, NaI-Na2S-B2S3, Na3PO4-Na2S-Si2S,Na3PO4-Na2S-SiS2, NaPO4-Na2S-SiS,NaI-Na2S-P2O5, NaI-Na3PO4-P2S5and Na2S-P2S5sodium-based solid electrolyte layer of an electrolyte represented by the composite positive electrode active material according to claim 7 selected from.
[claim9]
9. Wherein the positive electrode active material, Li, LiM (M is, Sn, Si, Al, Ge, Sb or P), mgxM(Mis Sn, Sb or Ge), MySb(Mis In, Mn or cu), LiCoO2, LiNiO2, LiMn2O4, Li0.44MnO2, LiNi0.5Mn0.5O2, LiCo1/3Ni1/3Mn1/3O2, Li1+xMn2-x-yMyO4(Mis, Al, mg, Co, Fe, Ni and Zn are one or more metal elements selected from the group consisting 1), LixTiOy, LixSiyOz, LiFeO2, LiCoN,LiMPO4(Mis Fe, Mn, Co or Ni), Li3V2(PO4)3, V2O5, MoO3, TiS2, FeS,hard carbon and graphite and the metal ions are lithium, Na, NaM (M is, Sn, Si, Al, Ge, Sb or P), mgxM(Mis Sn, Sb or Ge), MySb(Mis In, Mn or cu), NaCoO2, NaNiO2, NaMn2O4, Na0.44MnO2, NaNi0.5Mn0.5O2, NaCo1/3Ni1/3Mn1/3O2, Na1+xMn2-x-yMyO4(Mis, Al, mg, Co, Fe, Ni and Zn 1 one or more metal elements selected from the group consisting), NaxTiOy, NaxSiyOz, NaFeO2, NaCoN,NaMPO4(Mis Fe, Mn, Ni or Co), Na3V2(PO4)3, V2O5, MoO3, TiS2, FeS,the hard carbon of the graphite and the metal ions and sodium and the positive electrode active material composite according to claim 8 selected from.
[claim10]
10. A positive electrode active material in the form of particles that covers the surface of the sulfide-based solid electrolyte layer comprised of a composite comprising the positive electrode active material for a positive electrode of the all-solid secondary battery even, wherein the positive electrode of which is calculated from the cross-sectional photograph of the area occupying ratio in the contact ratio to the value obtained by multiplying, in the 40% or more, said contact rate, wherein the positive electrode active material of the positive electrode active material to the length of the interface between the solid electrolyte layer in contact with the percentage of the length of the interface, wherein the area occupation ratio, the occupation ratio of the area of the positive electrode active material for positive electrode.
[claim11]
11. A positive electrode active material according to claim 10 composite according to claim 1 including the positive electrode.
[claim12]
12. The positive electrode according to claim 10, negative electrode, wherein the positive electrode and the negative electrode is positioned between the solid electrolyte layer in the all-solid secondary battery.
[claim13]
13. A method of manufacturing a composite according to claim 1 in the positive electrode active material, the manufacturing method, in an inert gas atmosphere of a low moisture concentration, the particulate positive electrode active material and the sulfide-based solid electrolyte composite method comprises the step of subjecting the dry particles, the dry particle composite method, high speed impact method, by a compressive shearing method, shock compression shear method is selected from among a shear frictional and mixing the positive electrode active material manufacturing method of a composite.
  • 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
  • OSAKA PREFECTURE UNIVERSITY
  • 発明者(英語)
  • WATANO SATORU
  • NAKAMURA HIDEYA
国際特許分類(IPC)
指定国 (WO201838037)
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

PAGE TOP

close
close
close
close
close
close