Unraveling the Impact of Ether and Carbonate Electrolytes on the Solid–Electrolyte Interface and the Electrochemical Performances of ZnSe@C Core–Shell Composites as Anodes of Lithium-Ion Batteries

• DOI: 10.1021/acsami.8b21237
• Publication Date: 2019-01-31T18:26:33Z
• Authors: Dejun Ma; Qiulan Zhu; Xintao Li; Hongcheng Gao; Xiufang Wang; Xiongwu Kang; Yong Tian
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy; 3. Good health

The recognition of the solid electrolyte interface (SEI) between electrode materials and is limiting selection materials, electrolytes, further electrochemical performance batteries. Herein, we report ZnSe@C core–shell nanocomposites derived from ZIF-8 as anode lithium-ion batteries, performances, SEI films formed on in both ether carbonate electrolytes. It found that delivers a reversible capacity 617.1 mA h·g–1 after 800 cycles at 1 A·g–1 electrolyte, much higher than electrolyte. Both ex situ X-ray diffraction photoelectron spectroscopies reveal stable are while selenium involved formation dissolved into because concurrent decomposition electrolytes insertion Li+ ZnSe, which differentiates cycling performances composites