146. 駆動用バッテリー
駆動用バッテリーは、電気・ハイブリッド車を走行させる電気エネルギーを蓄える充電式バッテリーです。1基以上の駆動モーターへ電力を供給し、通常の12V始動用バッテリーよりはるかに大型・高出力です。
容量は通常キロワット時(kWh)で示され、電気自動車の航続距離へ大きく影響します。性能と使用可能容量は経年、充放電回数、温度、使用状況などで徐々に低下します。
What does a traction battery do?
A traction battery stores electrical energy and supplies it to the electric motor or motors that propel the vehicle. In hybrid vehicles it works together with another power source, while in battery-electric vehicles it provides the main source of propulsion energy.
What is the difference between a traction battery and a 12-volt car battery?
The traction battery provides the large amount of electrical energy needed to propel the vehicle. The conventional 12-volt battery mainly supplies low-voltage systems and supports functions such as vehicle electronics, control systems and starting procedures.
What does traction-battery capacity mean?
Battery capacity indicates how much electrical energy the battery can store and is commonly expressed in kilowatt-hours (kWh). A larger usable capacity generally allows more electrical energy to be available for driving.

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