COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME, EL

专利名称：COMPOSITE PARTICLES, METHOD FOR

PRODUCING SAME, ELECTRODE MATERIALFOR SECONDARY BATTERIES, ANDSECONDARY BATTERY

发明人：Takashi Kawasaki,Nobuyuki Yoshino,Hiroshi

Murata,Takehiko Sawai,Shinji Saito,KazunoriUrao

申请号：US14358016申请日：20121114

公开号：US20140342231A1公开日：20141120

摘要：Provided is positive electrode material for a highly safe lithium-ion secondarybattery that can charge and discharge a large current while having long service life.Disclosed are composite particles comprising: particles of lithium-containing phosphate;and carbon coating comprising at least one carbon material selected from the groupconsisting of (i) fibrous carbon material, (ii) chain-like carbon material, and (iii) carbonmaterial produced by linking together fibrous carbon material and chain-like carbonmaterial, wherein each particle is coated with the carbon coating. The fibrous carbonmaterial is preferably a carbon nanotube with an average fiber size of 5 to 200 nm. Thechain-like carbon material is preferably carbon black produced by linking, like a chain,primary particles with an average particle size of 10 to 100 nm. The lithium-containingphosphate is preferably LiFePO, LiMnPO, LiMnFePO, LiCoPO, or LiV(PO).

申请人：DENKI KAGAKU KOGYO KABUSHIKI KAISHA

地址：Tokyo JP

国籍：JP

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