The author of 《Exploring synergetic effects of vinylene carbonate and 1,3-propane sultone on LiNi0.6Mn0.2Co0.2O2/graphite cells with excellent high-temperature performance》 were Xu, Dongwei; Kang, Yuanyuan; Wang, Jun; Hu, Shiguang; Shi, Qiao; Lu, Zhouguang; He, Dongsheng; Zhao, Yanfei; Qian, Yunxian; Lou, Hongming; Deng, Yonghong. And the article was published in Journal of Power Sources in 2019. Reference of Vinylene carbonate The author mentioned the following in the article:
LiNi0.6Mn0.2Co0.2O2 attracts increasing attention in industry due to its high energy d. Vinylene carbonate and 1,3-propane sultone are engaged to enhance the high-temperature performance of LiNi0.6Mn0.2Co0.2O2/artificial graphite pouch cells in this work. With the addition of the additives, the capacity retention of the full cell reaches 98% after 200 cycles at 45 °C and 500 mA. Meanwhile, the underneath mechanism is investigated by employing XPS, gas chromatograph-mass spectrometer and liquid chromatog.-quadruple time of flight mass spectrometry measurements. The results show that the additives can not only protect the anode, but also shelter the cathode. It is of great interest that vinylene carbonate can suppress the decomposition of electrolyte, leading to less organic species in electrolyte, more stable interfaces. The addition of 1,3-propane sultone takes part in the generation of sulfonates after formation, which can be reduced to sulfides upon cycling. The combination of these two additives can optimize the interfacial reactions, as well as can suppress the decomposition of electrolytes and the dissolution of manganese, which leads to much better high-temperature storage performance and cycling performance of the full cells. In the part of experimental materials, we found many familiar compounds, such as Vinylene carbonate(cas: 872-36-6Reference of Vinylene carbonate)
Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Reference of Vinylene carbonate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics