NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Organization Name

Panasonic Intellectual Property Management Co., Ltd.

Inventor(s)

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

This abstract first appeared for US patent application 18685595 titled 'NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Original Abstract Submitted

A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode current collector, and a positive electrode mixture layer supported on the positive electrode current collector. The negative electrode includes a negative electrode current collector, and a negative electrode mixture layer supported on the negative electrode current collector. The negative electrode mixture layer includes a negative electrode active material capable of absorbing and releasing lithium ions, and negative-electrode-side carbon nanotubes. The positive electrode mixture layer includes a positive electrode active material capable of absorbing and releasing lithium ions, and positive-electrode-side carbon nanotubes. The expansion rate during charging of the negative electrode is 10% or more.