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POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND PROCESS FOR PRODUCTION THEREOF meetings

Foreign code F110006058
File No. S2009-1149
Posted date Dec 28, 2011
Country WIPO
International application number 2010JP067217
International publication number WO 2011/043255
Date of international filing Oct 1, 2010
Date of international publication Apr 14, 2011
Priority data
  • P2009-232705 (Oct 6, 2009) JP
Title POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND PROCESS FOR PRODUCTION THEREOF meetings
Abstract Disclosed are: a positive electrode material for a lithium ion secondary battery, which can be produced by a more simplified production process and in which an electrically conductive auxiliary agent can be attached on the surface of particles of the positive electrode material with high efficiency; and a process for producing the positive electrode material. The process for producing a positive electrode material for a lithium ion secondary battery is characterized by comprising the steps of: (1) preparing a batch which comprises lithium methaphosphate (LiPO3) powder and a transition metal oxide represented by chemical formula MO, MO2, M3O4 or M2O3 (wherein M represents at least one element selected from Fe, Mn, Co and Ni) in such a manner that the molar ratio among lithium, phosphorus and a transition metal is 1:1:(0.8-1.2); (2) adding a reducing agent to prepare a mixed powder; and (3) burning the mixed powder to form crystals of LiMPO4 (wherein M represents at least one element selected from Fe, Mn, Co and Ni) or crystals composed of a solid solution of the aforementioned LiMPO4.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • National University Corporation Nagaoka University of Technology
  • Inventor
  • HONMA Tsuyoshi
  • KOMATSU Takayuki
  • TOGASHI Takuya
IPC(International Patent Classification)
Specified countries AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW,BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CL(UTILITY MODEL),CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM,DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN(UTILITY MODEL),HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME,MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PE(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TH(PETTY PATENT),TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(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),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LR(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)

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