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| Natura: | Artículo Open Access |
| Pubblicazione: |
Wiley
2026
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| Accesso online: | https://onlinelibrary.wiley.com/doi/10.1002/bte2.70121 |
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| _version_ | 1867009503670566912 |
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| author | Ruijian Tang Zhiqiang Wang Ningqi Sun Chuanzhao Zhang Xingyu Zhang Shiqing Wang Lin Lin Ziyi Li |
| author_facet | Ruijian Tang Zhiqiang Wang Ningqi Sun Chuanzhao Zhang Xingyu Zhang Shiqing Wang Lin Lin Ziyi Li Ruijian Tang Zhiqiang Wang Ningqi Sun Chuanzhao Zhang Xingyu Zhang Shiqing Wang Lin Lin Ziyi Li |
| collection | Wiley Open Access |
| contents | Chemically Self‐Powered Pre‐Activation Strategy for Catalytic Purification of Lithium‐Ion Battery Thermal Runaway Off‐Gas Ruijian Tang Zhiqiang Wang Ningqi Sun Chuanzhao Zhang Xingyu Zhang Shiqing Wang Lin Lin Ziyi Li Battery Energy ABSTRACT During lithium‐ion battery thermal runaway, oxygen‐depleted, highly concentrated flammable fumes are released, posing a significant challenge to safety control. Catalytic oxidation requires both sufficient O 2 and elevated temperatures for activation. However, thermal runaway off‐gas is inherently oxygen‐free, creating a fundamental paradox: direct air supply cools the gas below activation threshold, while pre‐heating demands external energy input. To address this issue, this study proposes a chemically self‐powered pre‐activation strategy based on both O 2 and heat supply. By placing superoxides upstream of the catalyst and utilising their exothermic reaction with CO 2 in the fumes, the necessary O 2 and reaction heat were released during the initial stage of catalytic oxidation. Simultaneously, a blower is introduced to provide a continuous O 2 supply for subsequent sustained oxidation. This strategy achieves purification efficiencies exceeding 87% for both H 2 and CO throughout the thermal runaway event with zero open flame occurrence and outlet temperatures below 100°C, ensuring safe discharge. This study provides a viable technical pathway for the post‐treatment of battery thermal runaway emissions, eliminating dependency on external heating or compressed oxygen supplies. 10.1002/bte2.70121 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/bte2.70121 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_bte2_70121 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Chemically Self‐Powered Pre‐Activation Strategy for Catalytic Purification of Lithium‐Ion Battery Thermal Runaway Off‐Gas Ruijian Tang Zhiqiang Wang Ningqi Sun Chuanzhao Zhang Xingyu Zhang Shiqing Wang Lin Lin Ziyi Li Battery Energy Chemically Self‐Powered Pre‐Activation Strategy for Catalytic Purification of Lithium‐Ion Battery Thermal Runaway Off‐Gas Ruijian Tang Zhiqiang Wang Ningqi Sun Chuanzhao Zhang Xingyu Zhang Shiqing Wang Lin Lin Ziyi Li Battery Energy ABSTRACT During lithium‐ion battery thermal runaway, oxygen‐depleted, highly concentrated flammable fumes are released, posing a significant challenge to safety control. Catalytic oxidation requires both sufficient O 2 and elevated temperatures for activation. However, thermal runaway off‐gas is inherently oxygen‐free, creating a fundamental paradox: direct air supply cools the gas below activation threshold, while pre‐heating demands external energy input. To address this issue, this study proposes a chemically self‐powered pre‐activation strategy based on both O 2 and heat supply. By placing superoxides upstream of the catalyst and utilising their exothermic reaction with CO 2 in the fumes, the necessary O 2 and reaction heat were released during the initial stage of catalytic oxidation. Simultaneously, a blower is introduced to provide a continuous O 2 supply for subsequent sustained oxidation. This strategy achieves purification efficiencies exceeding 87% for both H 2 and CO throughout the thermal runaway event with zero open flame occurrence and outlet temperatures below 100°C, ensuring safe discharge. This study provides a viable technical pathway for the post‐treatment of battery thermal runaway emissions, eliminating dependency on external heating or compressed oxygen supplies. 10.1002/bte2.70121 http://creativecommons.org/licenses/by/4.0/ |
| title | Chemically Self‐Powered Pre‐Activation Strategy for Catalytic Purification of Lithium‐Ion Battery Thermal Runaway Off‐Gas |
| topic | Battery Energy |
| url | https://onlinelibrary.wiley.com/doi/10.1002/bte2.70121 |