Secondary battery and manufacturing method therefor

Details Secondary battery and manufacturing method therefor Secondary battery and manufacturing method therefor

C - Chemistry, Metallurgy

01

B

C01B 31/00 (2006.01) C04B 35/52 (2006.01) C04B 35/58 (2006.01) C04B 35/64 (2006.01) H01M 6/10 (2006.01) H01M 4/58 (2006.01) H01M 4/48 (2006.01)

Patent

CA 2092222

A secondary battery is comprised 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, and the carbon compound having carbon (C) being partially replaced by both boron (B) and nitrogen (N) and having a formula BC3N or the carbon compound having carbon (C) being partially replaced by boron (B) and having a formula BC3. In the battery, the positive electrode may be a metal chalcogen or metal oxide, such as LiNiO2, LiMn2O3, LiFeO2, LiCoO2 and MnO2. The electrolyte may be a nonaqueous electrolyte or a solid electrolyte. The non-aqueous electrolyte uses an organic solvent and a lithium salt.

Une pile secondaire comprenant une électrode positive, un électrolyte et une électrode négative qui intercale le lithium de façon réversible. L'électrode négative utilise un composé de carbone ayant une structure de cristal semblable à celle du graphite; dans le composé de carbone, le carbone (C) a soit été partiellement remplacé par du bore (B) et de l'azote (N) et a la formule BC3N, soit partiellement remplacé par du bore (B) et a la formule BC3. Dans la pile, l'électrode positive peut être un métal chalcogène ou un oxyde de métal tel que LiNiO2, LiMn2O3, LiFeO2, LiCoO2 et MnO2. L'électrolyte peut être non aqueux ou solide. L'électrolyte non aqueux utilise un solvant organique et un sel de lithium.

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