锂离子电池因其高能量密度、长寿命和低自放电率而成为目前占主导地位的移动电源。锂离子电池的安全性一直受到人们的关注。隔膜作为锂离子电池的重要组成部分,既为锂离子的传输提供了通道,同时又隔离了正负电极,防止了电池短路,对锂离子电池的安全性起着重要的作用。近年来,研究人员从方法、材料和实际要求的不同角度致力于开发各种多功能安全隔膜。主要关注高热稳定性、高安全性隔膜的最新进展,用于高安全锂离子电池。此外,还提出了下一代高安全性、锂电池隔膜的未来发展方向和挑战。
Lithium-ion batteries have become the dominant mobile power source due to their high energy density,long life and low self-discharge rate.The safety of lithium-ion batteries has always attracted people's attention.As an important part of the lithium-ion battery,the separator not only provides a channel for the transmission of lithium-ions,but also isolates the positive and negative electrodes to prevents the battery from short-circuiting,playing an important role in the safety of the lithium-ion battery.In recent years,researchers have devoted themselves to the development of various multifunctional safety separators from different perspectives of methods,materials and practical requirements.In this review,we mainly highlighted the latest developments of separators with high thermal stability and high safety for use in high-safety lithium-ion batteries.In addition,the future development direction and challenges of the next generation of high-safety,lithium-ion battery separators were also proposed.
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基金资助
辽宁省自然科学基金项目(20082187)
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