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Glossary of Terms Used to Specify Battery Performance Parameters

2 Glossary of Terms Used to Specify Battery Performance Parameters [Pg.328]

This section defines glossary terms used to specify battery performance parameters. Prospective battery designers who want to be involved in the design and development of next-generation batteries for electric vehicles (EVs) and hybrid electric vehicles (HEVs) should become familiar with these terms. [Pg.328]

Cycle life Cycle Ufe is the most critical performance parameter and is defined as the number of cycles delivered by a rechargeable or secondary battery before the battery s rated capacity falls to 80% of the initial capacity in a particular application. [Pg.328]

Power density. The power delivered by a battery expressed in watts per bter. Rated capacity. The nominal capacity dehvered by a battery as a specific rate of discharge in secondary cells and rated at a C/10 current and at C/100 in the case of primary cells. This is particularly used to calculate the energy density. Specific energy. The nominal energy of a battery expressed in watt-hours per kilogram. [Pg.329]

Self-discharge-. The loss of capacity of a rechargeable or secondary battery expressed in percent of the rated capacity lost per month at a given temperature. [Pg.329]




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