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AssigneesSeiko Instruments Inc., Seiko Electronic Components Ltd.
InventorsKensuke Tahara, Hideki Ishikawa, Tsugio Sakai, Akifumi Sakata, Fumiharu Iwasaki, Seiji Yahagi
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A non-aqueous electrolyte secondary battery has a negative electrode, a positive electrode and a non-aqueous electrolyte with lithium ion conductivity. A composite oxide produced from a metal or a metalloid and lithium represented by composition formula Li.sub.x MO (where M represents metals or metalloids other than alkali metals, and x satisifies 0.ltoreq.x) is used as an active material of one or both of the negative electrode and the positive electrode. The battery exhibits a large charging/discharging capacity and a high energy density together with smaller polarization (internal resistance) on charging and discharging which facilitates a large current charging and discharging with a long cycle life and reduces deterioration due to excess charging and excess discharging.
A non-aqueous electrolyte secondary battery comprising:
A non-aqueous electrolyte secondary battery comprising:
A non-aqueous electrolyte secondary battery comprising:
A method for producing a non-aqueous electrolyte secondary battery having a negative electrode, a positive electrode and a non-aqueous electrolyte with lithium ion conductivity, the method comprising:
A non-aqueous electrolyte secondary battery comprising:
Dependencies are inferred from the claim text.