Toyota proposes to use nickel-metal batteries for at least a decade longer

Even as most carmakers are hurrying to pioneer lithium ion batteries in their models, Toyota Motor Corporation says that it will carry on to use nickel-metal batteries for at least 10 more years. Toyota explained that in spite of the higher energy density of lithium ion batteries, nickel-metal ones have a shorter recharge time and a bigger discharge capacity. These are the major advantages in hybrid vehicles. Toyota claims that there won’t be much of a difference when it comes to recital anyway.

Shinzo Kobuki, senior managing director in charge of Toyota's battery technology, said that the increased efficiency from converting to lithium ion batteries from nickel-metal hydride is “at best 1% to 2% in the vehicle's performance.”

Kobuki asserted that there will be a progressive introduction of lithium ion batteries during the plug-in hybrid and electric vehicle ranges. He added that other companies have avoided nickel-metal batteries since they don't have the capacity to build the production cost effective.

For the last 10 years, Toyota has been manufacturing nickel-metal batteries via its joint venture with Panasonic Corp, Primearth EV Energy CO. In fact, Toyota has the biggest market share in the hybrid electric vehicle battery business. Because the venture was put up in 1996, it has created nickel metal-hydride batteries and has come up with battery management systems for hybrids and electric vehicles.

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