At present, the lithium ion secondary battery is necessary as an energy storage device for cellular phones, notebook computers and so on. The key to even further disseminate LIB was to add a safety function to prevent thermal abuse; therefore, the separator was required to have the safety function. The Asahi Kasei Corporation has carried out the development of the safety function of the separator and succeeded in controlling the pore size of the separator for improving the performance of LIBs.
- Haruyuki Yoneda
- Yoshifumi Nishimura
- Mitsuo Kohno
