Lithium primary battery
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsDaisuke Sumimoto, Mitsugu Okahisa, Masahiko Yoshida, Toshihiko Ikehata
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Abstract
A lithium primary battery including: a positive electrode containing a mixed crystalline manganese oxide; a negative electrode containing at least one selected from the group consisting of lithium and a lithium alloy; and a lithium-ion conductive non-aqueous electrolyte. The mixed crystalline manganese oxide contains at least λ-type manganese oxide and β-type manganese oxide, and the β-type manganese oxide has a crystallinity of 300 to 500. The mixed crystalline manganese oxide preferably has a specific surface area of 0.5 to 4 m2/g. The lithium alloy preferably contains at least aluminum in an amount of 0.2 wt % to 15 wt %.
Claims7
A lithium primary battery comprising:
- a positive electrode comprising a mixed crystalline manganese oxide;
- a negative electrode comprising at least one selected from the group consisting of lithium and a lithium alloy;
- and
- a lithium-ion conductive non-aqueous electrolyte,
- wherein said mixed crystalline manganese oxide comprises at least λ-type manganese oxide and β-type manganese oxide, and
- said β-type manganese oxide has a crystallinity of 300 to 500.
Dependencies are inferred from the claim text.