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  • 专利标题:   Electrode material used for lithium secondary battery, comprises negative electrode material containing components having graphene phase or amorphous phase as surface phase, and composite negative electrode active material.
  • 专利号:   WO2012140790-A1, CA2786012-A1, US2012328923-A1, CN102934266-A, KR2013142877-A, EP2698851-A1, JP2012528154-X, JP5834273-B2, CN102934266-B, US9413003-B2, EP2698851-A4, KR1907700-B1, EP2698851-B1
  • 发明人:   SAWAI T, SAITO S, URAO K, KAWASAKI T, SHINJI S
  • 专利权人:   SEI CORP, DENKI KAGAKU KOGYO KK, DENKI KAGAKU KOGYO KK, SEI CORP, SEI CORP, DENKI KAGAKU KOGYO KK, SEI KK, DENKA CO LTD, DENKA CO LTD, DENKA CO LTD
  • 国际专利分类:   H01M010/052, H01M010/0566, H01M010/0587, H01M004/36, H01M004/48, H01M004/587, H01M004/62, H01M004/133, B82Y030/00, H01M004/00, H01M004/583, H01M010/0525, H01M010/058, H01M004/38, H01M004/58, H01M010/0585, H01M004/13, H01M004/131, H01M004/134, H01M004/139, H01M004/1391, H01M004/1393, H01M004/1395
  • 专利详细信息:   WO2012140790-A1 18 Oct 2012 H01M-004/587 201271 Pages: 27 Japanese
  • 申请详细信息:   WO2012140790-A1 WOJP065590 07 Jul 2011
  • 优先权号:   JP089544, KR720078, CA2786012

▎ 摘　　要

NOVELTY - An electrode material comprises negative electrode material containing component (a), component (b) and component (c), having at least 1 phase chosen from graphene phase (8) and amorphous phase as surface phase, and composite negative electrode active material (7), which is obtained by carrying out the fusion coupling of the surface phases. The component (a) is active material (4) chosen from metal oxide and metal alloy. The component (b) is graphite-type carbon material (5). The component (c) is graphite-type carbon material, excluding the graphite-type carbon material (6). USE - Electrode material is used for lithium secondary battery (claimed) for car. ADVANTAGE - The lithium secondary battery using the electrode material has excellent capacity, charge/discharge characteristics, cycling characteristics and durability, reduced electrode material resistance. DETAILED DESCRIPTION - An electrode material comprises negative electrode material containing component (a), component (b) and component (c), having at least 1 phase chosen from graphene phase and amorphous phase as surface phase, and composite negative electrode active material, which is obtained by carrying out the fusion coupling of the surface phases. The component (a) is an active material, in which a carbon material is coated, and is chosen from metal oxide and metal alloy. The component (b) is graphite-type carbon material (m). The component (c) is graphite-type carbon material, excluding the graphite-type carbon material (m). Repeating occlusion/release of lithium ion in the lithium secondary battery is performed by permeating or immersing an organic electrolyte in the electrode group formed by winding or laminating through a separator between positive electrode plate and negative electrode plate. An INDEPENDENT CLAIM is included for lithium secondary battery. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of silicon-silicon dioxide/carbon-type electroconductive material composite negative electrode material. Carbon material (3) Active material (4) Graphite-type carbon material (5,6) Composite active material (7) Graphene phase (8)