Lithium–matrix composite anode protected by a solid electrolyte layer for stable lithium metal batteries
By Xin‐Bing Cheng, Peng Shi, Jia-qi Huang, Xue‐Qiang Zhang, Chong Yan, Tao Li, Qiang Zhang. Journal of Energy Chemistry, 2019
215 citations recorded by the source corpus.
Abstract Lithium (Li) metal with an ultrahigh specific theoretical capacity and the lowest reduction potential is strongly considered as a promising anode for high-energy-density batteries. However, uncontrolled lithium dendrites and infinite volume change during repeated plating/stripping cycles hinder its practical applications immensely. Herein, a house-like Li anode (housed Li) was designed to circumvent the above issues. The house matrix was composed of carbon fiber matrix and affords a stable structure to relieve the volume change. An artificial solid electrolyte layer was formed on composite Li metal, just like the roof of a house, which facilitates uniform Li ions diffusion and serves as a physical barrier against electrolyte corrosion. With the combination of solid electrolyte layer and matrix in the composite Li metal anode, both dendrite growth and volume expansion are remarkably inhibited. The housed Li | LiFePO4 batteries exhibited over 95% capacity retention after 500 cycles at 1.0 C in coin cell and 85% capacity retention after 80 cycles at 0.5 C in pouch cell. The rationally combination of solid electrolyte layer protection and housed framework in one Li metal anode sheds fresh insights on the design principle of a safe and long-lifespan Li metal anode for Li metal batteries.
Subfields: Automotive Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/56d732f9321019ce6d8e01d3080539d9fd611015
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In Automotive Engineering
- Qiang Zhang
- Xue‐Qiang Zhang
- Chong Yan
- Bo‐Quan Li
- Jiaqi Huang
- Xin‐Bing Cheng
- Jia-qi Huang
- Hong‐Jie Peng
In Electrical and Electronic Engineering
Citations in the corpus
- A compact inorganic layer for robust anode protection in lithium‐sulfur batteries (2020, background): “Additives react irreversibly with Li anode to form in situ protective layer, in which the role of inorganic components is realized.(42-45) However, the sacrificial nature of the film-forming additives cripples their effects during long-term cycling.”