Lithium secondary battery
AssigneeMurata Manufacturing Co., Ltd.
InventorsYasuhisa Yamashita, Koji Hattori
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Abstract
The invention provides a lithium secondary battery, comprising a cathode having a spinel-structured lithium-manganese complex oxide as the active material, which is characterized in that the particles of said spinel-structured lithium-manganese complex oxide are hollow, spherical secondary particles formed by sintering of primary particles, and said secondary particles have a mean particle size of from about 1 to 5 micrometer and a specific surface area of from about 2 to 10 m2/g. The lithium secondary battery has a high capacity and excellent charge-discharge cycle characteristics.
Claims9
A lithium secondary battery comprising
- a cathode having a spinel-structured lithium-manganese complex oxide as the active material, characterized in that
- the spinel-structured lithium-manganese complex oxide is in the form of hollow, spherical particle sinters formed of smaller size particles, and
- said particle sinters have a mean particle size of from about 1 to 5 micrometer and a specific surface area of from about 2 to 10 m2/g.
Dependencies are inferred from the claim text.