Optimization of composition and structure of metal-hydride electrodes

摘要: This paper focuses on investigations to improve the capacity and cycle-life of a Ni/MH[sub x] battery by optimization composition (active material additive) structure metal hydride electrode. Teflonized carbons, Vulcan-XC-72, Notrit-NK, acetylene black (XC-35) were evaluated as additive materials for AB[sub 2] 5]-type alloys. Experiments conducted determine optimum (1) amount in electrode, (2) ratio that electronically conducting (carbon or black), (3) percentage Teflon The discharge cycle life depended both type material. carbon increased stability electrode over an with copper powder additive. increase is attributed flexible, three-dimensional carbon-Teflon network which permits its intimate stable contact active alloy particles. Vulcan-XC-72 enhances above copper. behavior electrodes, respect effect additives, similar AB[submore » 5] alloys materials.« less