Second Life Leaf Battery Uses Examined

Nissan, not to be outdone by electric vehicle rivals Tesla Motors and GM in the business of innovating things to do with electric car batteries after they’ve outlived their usefulness in the cars themselves, has partnered with Sumitomo Corporation in Japan to conduct research on the second-life use these lithium-ion batteries could have. This partnership, which resulted in the formation of a company called 4R Energy, first started in October 2009 as a joint study.

Nissan said that 4R Energy (with 4R meaning Reuse, Resell, Refabricate and Recycle) will work towards developing the second-life battery business, especially as relates to Nissan’s upcoming Leaf electric car. The Japanese automaker said this new entity will “meet management goals for the battery’s entire value chain and energy-storage solutions. As part of this new business development, the company will conduct demonstration tests and undertake a commercialization study.”

Nissan Leaf 20k

image via Nissan

Nissan and Sumitomo, which this year opened a new division responsible for environmental businesses, are pouring 450 million yen into the venture. Nissan will have slightly more control of 4R Energy, whose target markets for its second-life battery use include Japan and the United States.

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I am the editor-in-chief and founder for EarthTechling. This site is my desire to bring the world of green technology to consumers in a timely and informative matter. Prior to this my previous ventures have included a strong freelance writing career and time spent at Silicon Valley start ups.

1 Comment

  • Reply September 25, 2010


    To the best of my knowledge, the battery in EVs manages to power houses for upwards of 3 days or so. Also, for a majority of motorists, their driving time is claimed to stand at around 1 hour.
    By storing power from cheaper off-peak periods, the battery in EVs is able to power a house during expensive peak periods, even better, sell excess power back to the grid simultaneously, EVEN AFTER its automotive life.

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