Characterization of Reactions and Products of the Discharge and Forced Overdischarge of Li / SO 2 Cells
Characterization of Reactions and Products of the Discharge and Forced Overdischarge of Li / SO 2 Cells
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DOI：
10.1149/1.2124314
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发表时间：
1982-09
影响因子：
3.9
通讯作者：
M. Rupich;L. Pitts;K. Abraham
中科院分区：
文献类型：
--
作者：
M. Rupich;L. Pitts;K. Abraham
本文介绍了一种定量测定放电Li/SO_2电池中Li_2S_2 O_4的方法。在放电至电势降至零伏的电池中发现的Li-Se 〇 4的量与放电化学计量2Li+2S 〇 2-Li 2S 2 〇 4非常一致。用红外光谱、电子能谱和X射线衍射对Li_2S ~ O_4进行了表征。在强制过放电电池中已经鉴定出许多有机化合物，包括CH 4和3，5-二氨基-2，4-己烯腈。在强制过放电过程中，电池中发现的排放产物包括：CO2、CS2、COS、tI 2S、CH 4、C2 H4、C2 H2、Li 2S和Li2SO3.Li/LiBr、CH 3CN/SO2电池是近十年前推出的。近年来，人们一直致力于提高其性能和安全性（1-4）。然而，对系统整体安全性的重大关切仍然存在（5）。开发更安全的Li/SO2电池的一个主要障碍是缺乏对其各种操作模式相关化学的透彻理解。放电反应通常被认为是
A procedure for the quantitative determination of Li2S204 in discharged Li/SO2 cells is described. The amount of Li~ SeO4 found in cells discharged to potentials down to zero volt was in very good agreement with the discharge stoichiometry, 2Li+ 2SO2-, Li2S204. The Li2S~ O4 has been further characterized by infrared, ESCA, and X-ray analyses. A number of organic compounds including CH4 and 3, 5-diamino-2, 4-hexenenitrile have been identified in forced overdischarged cells. Products identified in cells that vented during forced overdischarge include: CO2, CS2, COS, tI2S, CH4, C2H4, C2H2, Li2S, and Li2SO3.The Li/LiBr, CHsCN/SO2 celt was introduced nearly a decade ago. In recent years considerable effort has been devoted to improving its performance and safety (1-4). _However, substantial concerns about the overall safety of the system still remain (5). A major deterrent to the development of a safer Li/SO2 cell has been the lack of a thorough understanding of the chemistry associated with its various operational modes. The discharge reaction is generally believed to be