| 초록 |
The separator is positioned between the cathode and the anode of the lithium secondary battery to enable the permeation of lithium ions and restricts the movement of electrons between the positive and negative electrodes to prevent electrical shorts, thereby maintaining safe operation of the lithium secondary battery. Therefore, it is very important to have a high lithium ion conductivity, chemical resistance, thermal and mechanical stability. The nonwoven fabric separator has many pores, large mechanical strength, and low manufacturing cost. The nonwoven membrane can be produced by the electrospinning method. The polyolefin series used in the membranes is not easy to electrospun. In this study, we have found the conditions of electrospinning by using polybutene - 1 copolymer which has excellent chemical resistance and durability in polyolefin series. Then, various membrane condition and shutdown test were conducted by using the nonwoven fabric as a secondary battery separator. |
