In order to satisfy basic battery characteristics for EV such as specific energy, specific power and cycle life that are required for driving on urban streets, the authors have selected valve-regulated lead acid battery as a conventional battery and nickel/metal-hydride battery as a advanced battery, and have been studying on these development in order to put into practical use by 1998. Regarding to nickel/metal-hydride battery, excellent nickel positive electrode with high temperature charge efficiency accomplished with additive, such as Ca compound, and exeedingly good hydrogen absorbing alloy negative electrode with high capacity and long cycle life, achieved by adjustment of alloy composition, surface treatment, and control of binder and conductive additive have been developed to overcome difficulties in scale up of battery size. Module battery using these technology posess specific energy twice (70 Wh/kg) as lead acid battery, and has superior specific power (160 Wh/kg) and long cycle life.
Development of sealed-type nickel/metal-hydride battery for electric vehicles
Entwicklung versiegelter Nickel-Metallhydrid-Batterien für Elektrofahrzeuge
EVS, International Electric Vehicle Symposium, 12 ; 2 ; 547-556
1994
10 Seiten, 11 Bilder, 1 Tabelle, 5 Quellen
Aufsatz (Konferenz)
Englisch
Development of Sealed-Type Nickel/Metal-Hydride Battery for Electric Vehicles
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