Review

Research Progress, Key Challenges, and Future Perspectives of Prelithiation Technologies for Silicon-Based Anodes

  • 王也 ,
  • 周俊杰 ,
  • 许崇 ,
  • 李永峰
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  • State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

Received date: 2026-05-09

  Online published: 2026-08-17

Supported by

National Natural Science Foundation of China (Nos. 22238012, 22408398), the Science Foundation of China University of Petroleum, Beijing (2462025BJRC006).

Abstract

Silicon-based anodes are promising candidates for high-energy-density lithium-ion batteries, but their initial irreversible lithium loss, continuous SEI formation, and volume variation reduce the initial Coulombic efficiency and undermine cycling stability. Prelithiation introduces additional active lithium before electrode fabrication, cell assembly, or formation to compensate first-cycle lithium consumption and improve the usable lithium inventory of full cells. This review classifies prelithiation technologies for silicon-based anodes according to the compensation location and lithium-source introduction pathway, including anode-side prelithiation, cathode-side lithium compensation, and separator/cell-level integrated strategies. Within anode-side prelithiation, direct-contact routes are subdivided into internal short-circuit, external short-circuit, and composite-interlayer prelithiation, and are discussed together with anode-additive and chemical prelithiation; cathode-side lithium compensation and separator/cell-level integrated strategies are compared in terms of compensation efficiency, uniformity, interfacial regulation, air stability, safety, processing complexity, and manufacturing compatibility. Key challenges and future directions are discussed with emphasis on precise lithium compensation, interface stabilization, environmental tolerance of prelithiation reagents, continuous manufacturing, and coordinated materials-process-equipment design.

Cite this article

王也 , 周俊杰 , 许崇 , 李永峰 . Research Progress, Key Challenges, and Future Perspectives of Prelithiation Technologies for Silicon-Based Anodes[J]. Acta Chimica Sinica, 0 : 26050153 . DOI: 10.6023/A26050153

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