摘要
面向新一代小型化轻量化武器装备对热电池电源的实际需求,通过流延涂布工艺制备了正极-电解质一体化复合薄膜极片。所制备的一体化薄膜具有良好的机械强度,极片厚度仅为180 mm,远小于传统粉末压片工艺制得极片的厚度。将一体化薄膜极片与锂硼负极组装成单体电池进行放电,放电结果表明,在100 mA/cm^(2)的电流密度下,450℃时单体电池的峰值电压为2.01 V,截止电压1.0 V时,放电时间达到125 s,对应比容量可达1806 A·s/g;同时,单体电池内阻也相对较低,仅为40 mΩ。
To meet the practical demand of thermal batteries applied in new miniaturization and lightweight weapons system,an integrated cathode-electrolyte thin film was fabricated by cast coating in this work.The thin film exhibited good mechanical properties,and its thickness was only 180mm,which was less than that of electrode prepared by traditional pressed pellet technology.The single cells with the thin film and LiB anode were discharged at 450℃while applying a current density of 100 mA/cm^(2).The results revealed that the peak voltage of the single cell was 2.01 V,and the discharge capacity of thin cathode was up to 1806 A·s/g when the voltage dropped to 1.0 V.In addition,the single cell displayed low resistance of 40 mΩ.
作者
朱明
胡冉
王超
王士瑞
越云博
ZHU Ming;HU Ran;WANG Chao;WANG Shirui;YUE Yunbo(State Key Laboratory of Space Power-Sources Technology,Shanghai Institute of Space Power-Sources,Shanghai 200245,China)
出处
《电源技术》
CAS
北大核心
2022年第1期33-35,共3页
Chinese Journal of Power Sources
关键词
热电池
一体化薄膜极片
电性能
thermal batteries
integrated thin film
electrochemical performance
