Industrial Technology Research Institute

Ping-Hsun Hsieh

Nae-Lih Wu

Hung-Chun Wu

Bing-Ming Lin

Ching-Yi Su

Mo-Hua Yang

Nae-Lih c/o Department Of Chemical Engineering Wu

A lithium ion secondary battery includes LiFePOas a major component of the positive electrode active material. In order to implement the high rate capability with 10 C/1 C rate larger than 80%, the invention designs a positive electrode on a current collector with a ratio (A/t) of coating area to coating thickness greater than 1.2&#xd7;10(mm) and uses more than one tab on the current collector. The design of the invention can be applied to other active materials with low conductivity as the positive electrode for lithium ion battery.

High rate capability design of lithium ion secondary battery

A lithium ion secondary battery includes LiFePOas a major component of the positive electrode active material. In order to implement the high rate capability with 10C/1C rate larger than 80%, the invention designs a positive electrode on a current collector with a ratio (A/t) of coating area to coating thickness greater than 1.2&#xd7;10(mm) and uses more than one tab on the current collector. The design of the invention can be applied to other active materials with low conductivity as the positive electrode for lithium ion battery.

Growing community of inventors

Hsinchu, Taiwan

Ping-Hsun Hsieh