A High‐Energy Tellurium Redox‐Amphoteric Conversion Cathode Chemistry for Aqueous Zinc Batteries
Fuente:
Wiley Open Access
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Artículo Open Access |
| Published: |
Wiley
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867011940186849280 |
|---|---|
| author | Jingwei Du Yirong Zhao Xingyuan Chu Gang Wang Christof Neumann Hao Xu Xiaodong Li Markus Löffler Qiongqiong Lu Jiaxu Zhang Dongqi Li Jianxin Zou Daria Mikhailova Andrey Turchanin Xinliang Feng Minghao Yu |
| author_facet | Jingwei Du Yirong Zhao Xingyuan Chu Gang Wang Christof Neumann Hao Xu Xiaodong Li Markus Löffler Qiongqiong Lu Jiaxu Zhang Dongqi Li Jianxin Zou Daria Mikhailova Andrey Turchanin Xinliang Feng Minghao Yu Jingwei Du Yirong Zhao Xingyuan Chu Gang Wang Christof Neumann Hao Xu Xiaodong Li Markus Löffler Qiongqiong Lu Jiaxu Zhang Dongqi Li Jianxin Zou Daria Mikhailova Andrey Turchanin Xinliang Feng Minghao Yu |
| collection | Wiley Open Access |
| contents | A High‐Energy Tellurium Redox‐Amphoteric Conversion Cathode Chemistry for Aqueous Zinc Batteries Jingwei Du Yirong Zhao Xingyuan Chu Gang Wang Christof Neumann Hao Xu Xiaodong Li Markus Löffler Qiongqiong Lu Jiaxu Zhang Dongqi Li Jianxin Zou Daria Mikhailova Andrey Turchanin Xinliang Feng Minghao Yu Advanced Materials AbstractRechargeable aqueous zinc batteries are potential candidates for sustainable energy storage systems at a grid scale, owing to their high safety and low cost. However, the existing cathode chemistries exhibit restricted energy density, which hinders their extensive applications. Here, a tellurium redox‐amphoteric conversion cathode chemistry is presented for aqueous zinc batteries, which delivers a specific capacity of 1223.9 mAh gTe−1 and a high energy density of 1028.0 Wh kgTe−1. A highly concentrated electrolyte (30 mol kg−1 ZnCl2) is revealed crucial for initiating the Te redox‐amphoteric conversion as it suppresses the H2O reactivity and inhibits undesirable hydrolysis of the Te4+ product. By carrying out multiple operando/ex situ characterizations, the reversible six‐electron Te2−/Te0/Te4+ conversion with TeCl4 is identified as the fully charged product and ZnTe as the fully discharged product. This finding not only enriches the conversion‐type battery chemistries but also establishes a critical step in exploring redox‐amphoteric materials for aqueous zinc batteries and beyond. 10.1002/adma.202313621 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/adma.202313621 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_adma_202313621 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | A High‐Energy Tellurium Redox‐Amphoteric Conversion Cathode Chemistry for Aqueous Zinc Batteries Jingwei Du Yirong Zhao Xingyuan Chu Gang Wang Christof Neumann Hao Xu Xiaodong Li Markus Löffler Qiongqiong Lu Jiaxu Zhang Dongqi Li Jianxin Zou Daria Mikhailova Andrey Turchanin Xinliang Feng Minghao Yu Advanced Materials A High‐Energy Tellurium Redox‐Amphoteric Conversion Cathode Chemistry for Aqueous Zinc Batteries Jingwei Du Yirong Zhao Xingyuan Chu Gang Wang Christof Neumann Hao Xu Xiaodong Li Markus Löffler Qiongqiong Lu Jiaxu Zhang Dongqi Li Jianxin Zou Daria Mikhailova Andrey Turchanin Xinliang Feng Minghao Yu Advanced Materials AbstractRechargeable aqueous zinc batteries are potential candidates for sustainable energy storage systems at a grid scale, owing to their high safety and low cost. However, the existing cathode chemistries exhibit restricted energy density, which hinders their extensive applications. Here, a tellurium redox‐amphoteric conversion cathode chemistry is presented for aqueous zinc batteries, which delivers a specific capacity of 1223.9 mAh gTe−1 and a high energy density of 1028.0 Wh kgTe−1. A highly concentrated electrolyte (30 mol kg−1 ZnCl2) is revealed crucial for initiating the Te redox‐amphoteric conversion as it suppresses the H2O reactivity and inhibits undesirable hydrolysis of the Te4+ product. By carrying out multiple operando/ex situ characterizations, the reversible six‐electron Te2−/Te0/Te4+ conversion with TeCl4 is identified as the fully charged product and ZnTe as the fully discharged product. This finding not only enriches the conversion‐type battery chemistries but also establishes a critical step in exploring redox‐amphoteric materials for aqueous zinc batteries and beyond. 10.1002/adma.202313621 http://creativecommons.org/licenses/by/4.0/ |
| title | A High‐Energy Tellurium Redox‐Amphoteric Conversion Cathode Chemistry for Aqueous Zinc Batteries |
| topic | Advanced Materials |
| url | https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202313621 |