Investigation into the deterioration in storage characteristics of nickel-metal hydride batteries during cycling
| Autor: | Hiroshi Nakamura, Masao Takee, Yoshifumi Magari, Katsuhiko Shinyama, Shigeki Matsuta, Koji Ishiwa, Toshiyuki Nohma, Kiyoshi Kumagae, Hiroyuki Akita |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Hydride Nickel hydride Metallurgy Energy Engineering and Power Technology chemistry.chemical_element Anode Nickel Nickel–metal hydride battery chemistry Electrical and Electronic Engineering Physical and Theoretical Chemistry Cobalt Self-discharge Separator (electricity) |
| Zdroj: | Journal of Power Sources. 143:265-269 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2004.11.051 |
| Popis: | The deterioration mechanism of the storage characteristics of nickel-metal hydride batteries for hybrid electric vehicles (HEVs) has been investigated. The deterioration in the storage characteristics during charge–discharge cycling is caused by the microscopic short circuit in the separator which is influenced by the deposits from the positive and negative electrode elements such as zinc, cobalt and manganese. Based on the elucidated deterioration mechanism, the deterioration in the storage characteristics of nickel-metal hydride batteries was suppressed by employing a hydrogen-absorbing alloy with higher oxidation resistance for the negative electrode. |
| Databáze: | OpenAIRE |
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