Статья

When It's Heavier: Interfacial and Solvation Chemistry of Isotopes in Aqueous Electrolytes for Zn‐ion Batteries

Xuan GaoChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKYuhang DaiDepartment of Chemical Engineering University College London London WC1E 7JE UKChengyi ZhangInstitute of Technological Sciences Wuhan University Hubei Wuhan 430072 P. R. ChinaYixuan ZhangInstitute of Materials Science Technische Universität Darmstadt 64287 Darmstadt GermanyWei ZongChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKWei ZhangChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKRuwei ChenChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKJiexin ZhuDepartment of Chemical Engineering University College London London WC1E 7JE UKXueying HuChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKMingyue WangChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKRuizhe ChenChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKZijuan DuChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKFei GuoDepartment of Chemical Engineering University College London London WC1E 7JE UKHaobo DongDepartment of Chemical Engineering University College London London WC1E 7JE UKYiyang LiuDepartment of Chemical Engineering University College London London WC1E 7JE UKHongzhen HeDepartment of Chemical Engineering University College London London WC1E 7JE UKSiyu ZhaoDepartment of Chemical Engineering University College London London WC1E 7JE UKFangjia ZhaoChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKJianwei LiDepartment of Chemical Engineering University College London London WC1E 7JE UKIvan P. ParkinChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKClaire J. CarmaltChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UKGuanjie HeChristopher Ingold Laboratory Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UK

2023en

ABI

Аннотация

Abstract The electrochemical effect of isotope (EEI) of water is introduced in the Zn‐ion batteries (ZIBs) electrolyte to deal with the challenge of severe side reactions and massive gas production. Due to the low diffusion and strong coordination of ions in D 2 O, the possibility of side reactions is decreased, resulting in a broader electrochemically stable potential window, less pH change, and less zinc hydroxide sulfate (ZHS) generation during cycling. Moreover, we demonstrate that D 2 O eliminates the different ZHS phases generated by the change of bound water during cycling because of the consistently low local ion and molecule concentration, resulting in a stable interface between the electrode and electrolyte. The full cells with D 2 O‐based electrolyte demonstrated more stable cycling performance which displayed ∼100 % reversible efficiencies after 1,000 cycles with a wide voltage window of 0.8–2.0 V and 3,000 cycles with a normal voltage window of 0.8–1.9 V at a current density of 2 A g −1 .

Перевод пока недоступен

Идентификаторы

DOI: 10.1002/ange.202300608

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar