SHEET-SHAPED NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a sheet shaped negative electrode for a lithium ion secondary battery which has a reduced cost and a high performance.

SOLUTION: The sheet-shaped negative electrode for the lithium ion secondary battery contains carbonaceous particles which store and release lithium ions and a binding agent for binding the carbonaceous particles, and a pore volume per mass of pores with diameters in a range of 0.05 to 100 μm is 0.07 to 1.0 cc/g. Preferably, the sheet-shaped negative electrode for the lithium ion secondary battery may contain a fiber-shaped carbonaceous material and a thermo-hardening resin may be used as the binding agent.

COPYRIGHT: (C)2009,JPO&INPIT