Locally Ordered Graphitized Carbon Coating Enables Recycled Microsized Silicon as High-Performance Anodes DOI
Minghao Ma, Haimei Li,

Yingtong Hu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Microsized silicon (m-Si) emerges as a promising alternative anode material to graphite for lithium-ion batteries, offering high theoretical capacity, cost-effectiveness, and ease of handling. However, the inevitable particle fragmentation resulting from its bulk size challenges practical application. Despite progress in carbon coating techniques that enhance stability mi-Si, there is still demand high-performance, scalable, cost-effective m-Si anodes industrial implementation. Herein, we propose strategy unleash capacity photovoltaic-waste-derived particles through locally ordered graphitized coating, contributing large-scale production superior anodes. The obtained m-Si/carbon exhibits 3203 mA h g-1 at 0.2 A rate capability (1532 4 g-1). NCM811//Si@t-C full cell presents retention 95.13% over 100 cycles. layer composed domains interconnected with disordered responsible remarkable performance. It effectively buffers volume changes m-Si, protects it electrolyte, promotes Li+ diffusion. Furthermore, this approach, combined utilization significantly reduces overall cost opening up opportunities application m-Si.

Language: Английский

Locally Ordered Graphitized Carbon Coating Enables Recycled Microsized Silicon as High-Performance Anodes DOI
Minghao Ma, Haimei Li,

Yingtong Hu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Microsized silicon (m-Si) emerges as a promising alternative anode material to graphite for lithium-ion batteries, offering high theoretical capacity, cost-effectiveness, and ease of handling. However, the inevitable particle fragmentation resulting from its bulk size challenges practical application. Despite progress in carbon coating techniques that enhance stability mi-Si, there is still demand high-performance, scalable, cost-effective m-Si anodes industrial implementation. Herein, we propose strategy unleash capacity photovoltaic-waste-derived particles through locally ordered graphitized coating, contributing large-scale production superior anodes. The obtained m-Si/carbon exhibits 3203 mA h g-1 at 0.2 A rate capability (1532 4 g-1). NCM811//Si@t-C full cell presents retention 95.13% over 100 cycles. layer composed domains interconnected with disordered responsible remarkable performance. It effectively buffers volume changes m-Si, protects it electrolyte, promotes Li+ diffusion. Furthermore, this approach, combined utilization significantly reduces overall cost opening up opportunities application m-Si.

Language: Английский

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