Oliff & Berridge, PLC
Lithium-ion battery
A cylindrical lithium-ion battery with high safety, high capacity and high power has a winding group having a positive electrode, a negative electrode and at least one separator, and a connecting portion for connecting to respective terminals from the winding group accommodated in a battery container, and which is provided with an inner pressure-reducing mechanism for discharging gas according to an increase in inner pressure inside the battery container. The positive electrode includes a collector whose both surfaces are applied with composing material including lithium-manganese complex oxide, the thickness of the composing material on the both surfaces of the collector is at least 210 &mgr;m and the amount of the active material per one surface of the collector is at least 240 g/m2. The compounding ratio of the lithium-manganese complex oxide in the composing material is preferably at least 80 wt %.
Shin-Kobe Electric Machinery Co., Ltd.
H Y H H Y H H H Y
H01M Y02E H01M H01M Y02P H01M H01M H01M Y10T
inventional additional inventional additional additional inventional inventional inventional additional
Kenji Takeshi Koji Kenji Tomohiro Kensuke Katsunori
Hara Nakano Higashimoto Nakai Iguchi Hironaka Suzuki