Li-Compound Anodes: A Classification for High-Performance Li-Ion Battery Anodes.
basic_science · Level V
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- Record sourced from PubMed, PMID 35876656.
- Also identified by DOI 10.1021/acsnano.2c05172.
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Abstract
Four main anode types are generally considered as typical anodes for Li-ion batteries (LIBs): Li-metal, carbon-based, alloy-based, and oxide-based anodes. Although they exhibit satisfactory electrochemical performance as LIB anodes, they cannot simultaneously satisfy all key requirements for LIB anodes: high reversible capacity, high initial Coulombic efficiency (ICE), long cycle life, fast rate capability, structural stability, and no safety concerns. Here, we suggest Li-compound anodes as a promising class of high-performance LIB anodes. Three binary (LiSn, Li<sub>2</sub>Sb, and LiBi) and three ternary (Li<sub>2</sub>ZnSb, Li<sub>5</sub>GeP<sub>3</sub>, and Li<sub>5</sub>SnP<sub>3</sub>) Li compounds were introduced as Li-compound anodes. LiSn and Li<sub>5</sub>SnP<sub>3</sub> were selected and further modified into their nanocomposites by solid-state synthetic routes using carbon sources for high-performance LIB anodes. The Li-compound nanocomposite anodes exhibited excellent performance and simultaneously fulfilled all the key requirements for high-performance LIB anodes. Therefore, Li-compound anodes are expected to be a promising and innovative category of high-performance LIB anodes.