High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity
CoS2 can meet the strict requirements of high probability output capacity and high energy output capacity of thermal batteries in modern weaponry thanks to its advantages of low resistivity and high thermal decomposition temperature combined with a full Li+ conductive electrolyte. Nevertheless, CoS2...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248123001789 |
| _version_ | 1827593622908829696 |
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| author | Licheng Tang Chengcheng Zhang Hao Guo Hongkai Zhao Qianqiu Tian Jianyong Wang Zhipeng Pan Jian Meng Jun Tang Lingping Zhou Changguo Chen Licai Fu |
| author_facet | Licheng Tang Chengcheng Zhang Hao Guo Hongkai Zhao Qianqiu Tian Jianyong Wang Zhipeng Pan Jian Meng Jun Tang Lingping Zhou Changguo Chen Licai Fu |
| author_sort | Licheng Tang |
| collection | DOAJ |
| description | CoS2 can meet the strict requirements of high probability output capacity and high energy output capacity of thermal batteries in modern weaponry thanks to its advantages of low resistivity and high thermal decomposition temperature combined with a full Li+ conductive electrolyte. Nevertheless, CoS2 has the limitations of a low voltage platform and theorical capacity. In this case, Fe and Ni are doped into the CoS2 lattice through low-temperature solid-phase sintering to synthesize Fe0.1Co0.8Ni0.1S2 with a single-phase structure. Fe0.1Co0.8Ni0.1S2 generated by the solid phase method has higher thermal stability, which can reduce the high temperature thermal shock at the immediate start of the thermal battery and assure the safety of the thermal battery in operation. Meanwhile, the mass loss of Fe0.1Co0.8Ni0.1S2 at 615 °C is only 5 %, allowing it to discharge at the maximum effective mass at the normal operating temperature(∼500 °C). Because of the synergistic action of Fe2+, Ni2+, and Co2+ in the discharge process, the discharge voltage of CoS2 increases significantly, giving CoS2 higher specific energy. The simultaneous boost in specific energy and specific capacity indicates that doping has been highly successful in modifying CoS2, making CoS2 more appropriate for the use of high current and long-life thermal cell systems. |
| first_indexed | 2024-03-09T02:14:21Z |
| format | Article |
| id | doaj.art-0d0cbcf6534b4240b4f224841b8faf52 |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-03-09T02:14:21Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-0d0cbcf6534b4240b4f224841b8faf522023-12-07T05:28:02ZengElsevierElectrochemistry Communications1388-24812023-12-01157107604High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivityLicheng Tang0Chengcheng Zhang1Hao Guo2Hongkai Zhao3Qianqiu Tian4Jianyong Wang5Zhipeng Pan6Jian Meng7Jun Tang8Lingping Zhou9Changguo Chen10Licai Fu11College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China; State Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaCollege of Material Science and Engineering, Hunan University, Changsha 410082, China; Corresponding authors.State Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaState Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaJoint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, ChinaState Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaState Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaState Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaState Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou, 563003, ChinaCollege of Material Science and Engineering, Hunan University, Changsha 410082, ChinaCollege of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China; Corresponding authors.College of Material Science and Engineering, Hunan University, Changsha 410082, ChinaCoS2 can meet the strict requirements of high probability output capacity and high energy output capacity of thermal batteries in modern weaponry thanks to its advantages of low resistivity and high thermal decomposition temperature combined with a full Li+ conductive electrolyte. Nevertheless, CoS2 has the limitations of a low voltage platform and theorical capacity. In this case, Fe and Ni are doped into the CoS2 lattice through low-temperature solid-phase sintering to synthesize Fe0.1Co0.8Ni0.1S2 with a single-phase structure. Fe0.1Co0.8Ni0.1S2 generated by the solid phase method has higher thermal stability, which can reduce the high temperature thermal shock at the immediate start of the thermal battery and assure the safety of the thermal battery in operation. Meanwhile, the mass loss of Fe0.1Co0.8Ni0.1S2 at 615 °C is only 5 %, allowing it to discharge at the maximum effective mass at the normal operating temperature(∼500 °C). Because of the synergistic action of Fe2+, Ni2+, and Co2+ in the discharge process, the discharge voltage of CoS2 increases significantly, giving CoS2 higher specific energy. The simultaneous boost in specific energy and specific capacity indicates that doping has been highly successful in modifying CoS2, making CoS2 more appropriate for the use of high current and long-life thermal cell systems.http://www.sciencedirect.com/science/article/pii/S1388248123001789DopedThermal batterySpecific capacityCoS2 |
| spellingShingle | Licheng Tang Chengcheng Zhang Hao Guo Hongkai Zhao Qianqiu Tian Jianyong Wang Zhipeng Pan Jian Meng Jun Tang Lingping Zhou Changguo Chen Licai Fu High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity Electrochemistry Communications Doped Thermal battery Specific capacity CoS2 |
| title | High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity |
| title_full | High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity |
| title_fullStr | High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity |
| title_full_unstemmed | High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity |
| title_short | High-specific capacity thermal battery cathode Fe and Ni doped CoS2 by enhanced thermal stability and conductivity |
| title_sort | high specific capacity thermal battery cathode fe and ni doped cos2 by enhanced thermal stability and conductivity |
| topic | Doped Thermal battery Specific capacity CoS2 |
| url | http://www.sciencedirect.com/science/article/pii/S1388248123001789 |
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