Lee & Morse, P.C.
Separator, method of manufacturing the same and battery using the same
A polyolefin-based porous separator, including a first polyolefin-based porous film on a first surface of a second polyolefin-based porous film, and a third polyolefin-based porous film on a second surface of the second polyolefin-based porous film, each of the first and third polyolefin-based porous films containing inorganic particles having an average particle size of 10 nm to 100 nm, a thickness ratio of the first polyolefin-based porous film, the second polyolefin-based porous film, and the third polyolefin-based porous film being 0.5 to 1.5:1 to 6:0.5 to 1.5, and thermal shrinkage rates of the separator in a machine direction and a transverse direction measured after standing at 120° C. for 1 hour each being 5% or less, and air permeability of the separator being 250 sec/100 cc or less.
Samsung SDI Co., Ltd.
H B H B B B B B B B H B Y H B H H H H H B B H B B H B H H H
H01M B29C H01M B29C B29C B29C B29C B29C B29C B29C H01M B29C Y02E H01M B29C H01M H01M H01M H01M H01M B29L B29K H01M B29L B29C H01M B29K H01M H01M H01M
inventional additional inventional inventional inventional additional additional inventional additional inventional additional inventional additional inventional additional inventional inventional inventional inventional inventional additional additional inventional additional additional inventional additional inventional inventional inventional
Jae Hyun Jung Sue Jun Ho Kee Wook Dae Hyun Jung Seong Sang Ho Yun Gi
Cho Jang Chung Kim Hong Lee Lee Kim