Li-metal batteries suffer from sluggish kinetics at low temperatures. Here, authors propose a guideline for rational electrolyte solvent screening and design a class of asymmetric ethers, which bestows the Li metal pouch cell with a high specific energy of 345.3 Wh kg−1 over 40 cycles at −40 °C.
- Zehang Peng
- Kui Ding
- Qifeng Zheng
