Tian Qianqiu, Wang Jiajun, Xiang Wendi, Zhao Jun, Guo Hao, Hu Jing, Han Xiaopeng, Hu Wenbin
School of Materials Science and Engineering, Tianjin University, Tianjin, China.
State Key Laboratory of Advanced Chemical Power Sources, Guizhou, China.
Front Chem. 2021 May 17;9:679231. doi: 10.3389/fchem.2021.679231. eCollection 2021.
Thermal batteries with a high power density and rapid activation time are crucial for improving the fast response ability of sophisticated weapons. In this study, an Ni-NiCl composite was prepared hydrogen reduction and employed as a cathode material. Discharge tests on a battery assembled using the fabricated composite revealed that its initial internal resistance decreased and the activation time reduced. Notably, the Ni-NiCl cathode increased the energy output by 47% (from 6.76 to 9.94 Wh in NiCl and Ni-NiCl, respectively) with a cut-off voltage of 25 V; the power density of the novel battery system reached 11.4 kW/kg. The excellent performance of the thermal battery benefited from the high electrode potential and low internal resistance of Ni-NiCl. This study contributes to the development of high-performance electrode materials for next-generation thermal battery-related technologies.
具有高功率密度和快速激活时间的热电池对于提高精密武器的快速响应能力至关重要。在本研究中，通过氢还原制备了Ni-NiCl复合材料并将其用作阴极材料。对使用该复合材料组装的电池进行的放电测试表明，其初始内阻降低，激活时间缩短。值得注意的是，在截止电压为25 V时，Ni-NiCl阴极使能量输出提高了47%（分别从NiCl中的6.76 Wh提高到Ni-NiCl中的9.94 Wh）；新型电池系统的功率密度达到11.4 kW/kg。热电池的优异性能得益于Ni-NiCl的高电极电位和低内阻。本研究为下一代热电池相关技术的高性能电极材料的开发做出了贡献。
