Secondary battery and manufacturing method therefor

U.S. Patent Number: 5358805

Abstract: A secondary battery is comprised at a positive electrode, an electrolyte and a negative electrode which intercalates lithium reversibly. The negative electrode uses a carbon compound having a crystal structure of graphite in which carbon (C) is partially replaced by both boron (B) and nitrogen (N) and has the formula BC.sub.3 N or in which (C) is partially replaced by boron (B) and has the formula BC.sub.3. In the battery, the positive electrode may be a metal chalcogen or metal oxide, such as FeS.sub.2, MoS.sub.2, TiS.sub.2, LiNiO.sub.2, LiMn.sub.2 O.sub.3, LiFeO.sub.2 LiCoO.sub.2 or MnO.sub.2. The electrolyte may be a nonaqueous electrolyte or a solid electrolyte. The non-aqueous electrolyte uses an organic solvent and a lithium salt.

Inventors: Fujimoto; Masahisa (Osaka, JP), Yoshinaga; Noriyuki (Sumoto, JP), Ueno; Koji (Higashi-osaka, JP), Moriwaki; Kazuro (Sumoto, JP), Nishio; Koji (Hirakata, JP)

Assignee: Sanyo Electric Co., Ltd. (Osaka, JP)

Application Number: 08/021,242

Issued: 1994-10-25

Expired: 2006-10-25

Classes: 429/221 ; 429/223; 429/224; 429/231.3; 429/231.5

Field of search: 429/218,221,223,224,212

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