Dendrite growth of lithium(Li)metal anode severely hinders its practical application,while the situation becomes more serious at low temperatures due to the sluggish kinetics of Liion diffusion.This perspective is int...Dendrite growth of lithium(Li)metal anode severely hinders its practical application,while the situation becomes more serious at low temperatures due to the sluggish kinetics of Liion diffusion.This perspective is intended to clearly understand the energy chemistry of lowtemperature Li metal batteries(LMBs).The lowtemperature chemistries between LMBs and traditional Liion batteries are firstly compared to figure out the features of the lowtemperature LMBs.Li deposition behaviors at low temperatures are then discussed concerning the variation in Liion diffusion behaviors and solid electrolyte interphase(SEI)features.Subsequently,the strategies to enhance the diffusion kinetics of Li ions and suppress dendrite growth including designing electrolytes and electrode/electrolyte interfaces are analyzed.Finally,conclusions and outlooks are drawn to shed lights on the future design of highperformance lowtemperature LMBs.展开更多
基金supported by National Natural Science Founda-tion of China(22179070,22109083,22108151,22075029,and 22061132002)China Postdoctoral Science Foundation(BX2021135,2021TQ0164)+1 种基金the Seed Fund of Shanxi Research In-stitute for Clean Energy(SXKYJF015)the Tsinghua University Initiative Scientific Research Program,and the“Shuimu Tsinghua Scholar Program of Tsinghua University”.
文摘Dendrite growth of lithium(Li)metal anode severely hinders its practical application,while the situation becomes more serious at low temperatures due to the sluggish kinetics of Liion diffusion.This perspective is intended to clearly understand the energy chemistry of lowtemperature Li metal batteries(LMBs).The lowtemperature chemistries between LMBs and traditional Liion batteries are firstly compared to figure out the features of the lowtemperature LMBs.Li deposition behaviors at low temperatures are then discussed concerning the variation in Liion diffusion behaviors and solid electrolyte interphase(SEI)features.Subsequently,the strategies to enhance the diffusion kinetics of Li ions and suppress dendrite growth including designing electrolytes and electrode/electrolyte interfaces are analyzed.Finally,conclusions and outlooks are drawn to shed lights on the future design of highperformance lowtemperature LMBs.
