Research progress on low-temperature graphite anode and electrolyte optimization for lithium-ion batteries

Under the background of continuous consumption of fossil energy, lithium-ion battery has become the mainstream energy storage battery. With the expansion of lithium-ion battery application fields, such as aerospace, deep-sea diving and polar exploration, its performance at low temperatures below −20 °C or even at extreme cold states should be improved, which is affected by electrode materials, electrolyte and other aspects. In this review, the progress in improvement of various components of electrolyte system and graphite anode in lithium ion battery at low temperature is summarized. Finally, the development prospect of low temperature lithium ion battery is discussed.