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Highly Stable Photo-Assisted Zinc-Ion Batteries via Regulated Photo-Induced Proton Transfer.
Zha, Wenwen; Ruan, Qiushi; Ma, Long; Liu, Meng; Lin, Huiwen; Sun, Litao; Sun, ZhengMing; Tao, Li.
Afiliação
  • Zha W; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China.
  • Ruan Q; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China.
  • Ma L; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China.
  • Liu M; State Key Lab Mol React Dynamics, Dynamics Research Center Energy and Environmental Material, Dalian Institute Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China.
  • Lin H; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China.
  • Sun L; Key Lab of MEMS of Ministry of Education, SEU-FEI Nano-Pico Center, Southeast University, Nanjing, 210096, P. R. China.
  • Sun Z; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China.
  • Tao L; Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China.
Angew Chem Int Ed Engl ; 63(15): e202400621, 2024 Apr 08.
Article em En | MEDLINE | ID: mdl-38334221
ABSTRACT
Photo-assisted ion batteries utilize light to boost capacity but face cycling instability due to complex charge/ion transfer under illumination. This study identified photo-induced proton transfer (photo-induced PT) as a significant process in photo-(dis)charging of widely-used V2O5-based zinc-ion batteries, contributing to enhanced capacity under illumination but jeopardizing photo-stability. Photo-induced PT occurs at 100 ps after photo-excitation, inducing rapid proton extraction into V2O5 photoelectrode. This process creates a proton-deficient microenvironment on surface, leading to repetitive cathode dissolution and anode corrosion in each cycle. Enabling the intercalated protons from photo-induced PT to be reversibly employed in charge-discharge processes via the anode-alloying strategy achieves high photo-stability for the battery. Consequently, a ~54 % capacity enhancement was achieved in a V2O5-based zinc-ion battery under illumination, with ~90 % capacity retention after 4000 cycles. This extends the photo-stability record by 10 times. This study offers promising advancements in energy storage by addressing instability issues in photo-assisted ion batteries.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article