Reproducibility and reliability of rechargeable lithium/molybdenum disulfide batteries

✍ Scribed by K. Brandt; F.C. Laman

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 792 KB
• Volume: 25
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(89)85014-1

✦ Synopsis

Groups of rechargeable lithium/molybdenum disulfide cells fabricated in Moli Energy Limited's pilot plant facilities have been subjected to cycle tests and charge retention tests to assess cell reproducibility and reliability. The results show excellent reproducibility as far as discharge capacity and charge retention are concerned. Cell failure occurs in two distinctive modes. The probability of early failures is low. Batteries assembled without attempts to match capacity and without means of charge equilibration of individual cells were subjected to similar tests. The results indicate that battery reproducibility and reliability are similar to those of single cells. The good performance of multicell batteries is attributable to the tightly controlled manufacturing process, sloping voltage characteristics, reserve capacity beyond the end points of charge and discharge, and near 100% coulombic efficiency of the single cell. *Author to whom correspondence should be addressed. **MOLI and MOLICEL are registered trademarks of Moli Energy Limited.