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Technology File - Safety Technology

Battery (Nickel-metal Hydride/Lithium-ion)

Toyota First1Column

Better fuel efficiency, greater controllability, expanded luggage space.
These are all made possible by battery advances.

The cooling system compactness and optimized internal device layout of the main relay and other components in batteries eliminate dead space and make it possible for the batteries to be installed under the rear seats. Not only do they offer high fuel efficiency, they also contribute to reducing vehicle weight, greater stability and controllability by lowering vehicle center of gravity, and provide greater luggage space. The new (2015) Prius lineup includes both nickel-metal hydride and lithium-ion batteries. Nickel-metal hydride batteries use newly developed electrode material and battery case design for dramatically increased charge performance. Lithium-ion batteries have dramatically increased output performance due to their use of newly developed electrode materials and reduced cell resistance. Both nickel-metal hydride and lithium-ion batteries charge at a constant level at all times by monitoring and computing the cumulative amount of discharge under acceleration, and recharging by regenerative braking or with surplus power under normal running conditions. They also eliminate the need for external charging and regular replacement.

  1. As of February 2017.
Battery (Nickel-metal Hydride/Lithium-ion)

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