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Soluble and Perfluorinated Polyelectrolyte for Safe and High‐Performance Li−O~2~ Batteries by Qi Xiong; Gang Huang; Yue Yu; Chao‐Le Li; Jian‐Chen Li; Jun‐Min Yan; Xin‐Bo Zhang is a Chemistry article available to read on EtoBox.
What is Soluble and Perfluorinated Polyelectrolyte for Safe and High‐Performance Li−O~2~ Batteries about?
## Abstract The severe performance degradation of high‐capacity Li−O~2~ batteries induced by Li dendrite growth and concentration polarization from the low Li^+^ transfer number of conventional electrolytes hinder their practical applications. Herein, lithiated Nafion (LN) with the sulfonic group immobilized on the perfluorinated backbone has been designed as a soluble lithium salt for preparing a less flammable polyelectrolyte solution, which not only simultaneously achieves a high Li^+^ transfer number (0.84) and conductivity (2.5 mS cm^−1^), but also the perfluorinated anion of LN produces a LiF‐rich SEI for protecting the Li anode from dendrite growth. Thus, the Li−O~2~ battery with a LN‐based electrolyte achieves an all‐round performance improvement, like low charge overpotential (0.18 V), large discharge capacity (9508 mAh g^−1^), and excellent cycling performance (225 cycles). Besides, the fabricated pouch‐type Li–air cells exhibit promising applications to power electronic equipment with satisfactory safety.
Who reads Soluble and Perfluorinated Polyelectrolyte for Safe and High‐Performance Li−O~2~ Batteries?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Qi Xiong; Gang Huang; Yue Yu; Chao‐Le Li; Jian‐Chen Li; Jun‐Min Yan; Xin‐Bo Zhang
- Publisher
- Wiley
- Published
- 2022
- Language
- EN
- Field
- Chemistry (Physical Sciences)