ELECTRODE MATERIAL OF NONAQUEOUS SECONDARY BATTERY, ITS PROCESS OF MANUFACTURE, AND NONAQUEOUS SECONDARY BATTERY USING ELECTRODE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an electrode material excellent in heavy load discharge property, cycle property and the like, capable of achieving a nonaqueous secondary battery with a large capacity.

SOLUTION: The electrode material of the battery includes compound particles containing a plurality of particles containing a material capable of storing and releasing Li, and a coating layer containing a conductive carbon material covering the compound particles. The electrode material is featured by having at least one pore distribution peak within a range of not less than 0.001 μm and not more than 0.2 μm in a pore distribution curve of the electrode material measured by using a mercury injection type porosimeter. The electrode material may further include a material layer covering the coating layer and containing graphitization retardant carbon.

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