Recently, Zhu Yingjie's team from Shanghai Institute of Ceramics and Hu Xianluo's team from Huaji University successfully developed a new type of hydroxyapatite ultra-long nanowire-based high-temperature lithium-ion battery separator. Relevant research results were published in "Advanced Materials" a few days ago, and an invention patent was applied for.

　　Recently, Zhu Yingjie's team from Shanghai Institute of Ceramics and Hu Xianluo's team from Huaji University successfully developed a new type of hydroxyapatite ultra-long nanowire-based high-temperature lithium-ion battery separator. Relevant research results were published in "Advanced Materials" a few days ago, and an invention patent was applied for.

　　According to reports, the battery separator has many advantages, such as high flexibility, good mechanical strength, high porosity, excellent electrolyte wetting and adsorption performance, high thermal stability, high temperature resistance, and can still maintain its Structural integrity.

　　Battery separator is a key material that guarantees battery safety and affects battery performance. Currently, commercial lithium-ion battery separators are mainly polyolefin organic separators, but they may cause short circuits in the battery, and may cause fire or explosion in severe cases.

　　The battery assembled with the new hydroxyapatite ultra-long nanowire-based high-temperature battery separator has better electrochemical performance, cycle stability and rate performance than the battery assembled with the polypropylene separator. More importantly, the new battery has excellent thermal stability, can withstand high temperatures, can maintain normal working conditions in a high temperature environment of 150 ℃, and light up small bulbs. It can be expected that if the new battery separator is used and matched with high temperature resistant electrolyte and electrode materials, the working temperature and safety of the battery can be further greatly improved.

　　Experts said that this research work is of great significance to greatly improve the operating temperature range of lithium-ion batteries and the safety of lithium-ion batteries.