具有高热稳定性的基于固有微孔聚合物的大孔膜作为锂离子电池隔膜

Tian Yangyang, Lin Chong, Wang Zhenggong, Jin Jian

School of Nano Technology and Nano Bionics, University of Science and Technology of China Hefei 230026 China.

i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China.

RSC Adv. 2019 Jul 10;9(37):21539-21543. doi: 10.1039/c9ra02308a. eCollection 2019 Jul 5.

Polymers of intrinsic microporosity (PIMs) have numerous advantages such as good thermal stability ( > 300 °C) and mechanical stability (tensile strength at break > 60 MPa) as well as excellent electrical insulation performance and chemical/electrochemical stability. Herein, a macroporous membrane made up of a polymer of intrinsic microporosity (PIM-1) was fabricated and used as a separator of a rechargeable Li-ion battery for the first time. The PIM-1-based separator showed good thermal resistance with > 300 °C, high electrolyte uptake, and excellent Li-ion conductivity.

固有微孔聚合物（PIMs）具有许多优点，如良好的热稳定性（>300°C）和机械稳定性（断裂拉伸强度>60MPa），以及优异的电绝缘性能和化学/电化学稳定性。在此，首次制备了由固有微孔聚合物（PIM-1）组成的大孔膜，并将其用作可充电锂离子电池的隔膜。基于PIM-1的隔膜表现出良好的热阻（>300°C）、高电解质吸收率和优异的锂离子传导率。