World's first process to reuse rare Earth metals extracted from nickel-metal hydride batteries for hybrid vehicles

Mar 04, 2013
Honda's process for recycling nickel-metal hydride batteries.

Honda Motor established the world's first process to reuse rare earth metals extracted from nickel-metal hydride batteries for new nickel-metal hydride batteries to recycle precious resources.

So far, has been extracting an oxide containing rare earth metals from used nickel-metal hydride batteries at the plant of Japan Metals & Chemicals Co., Ltd. (JMC). Now, by applying molten salt electrolysis to this oxide, Honda has succeeded in extracting metallized rare earth that can be used directly as negative-electrode materials for nickel-metal hydride batteries. The rare earth metals extracted in this process has a purity of more than 99% which is as high as that of ordinary traded, newly mined rare earth metals. In addition, the new process enables the extraction of as much as above 80% of rare earth metals contained in nickel-metal hydride battery.

Under the newly established process, the extracted rare earth metals will be supplied from JMC to a battery manufacturer in early March, which will reuse them as negative-electrode materials for nickel-metal hydride batteries for . This time, the rare earth metals were extracted from nickel-metal hydride batteries collected from 386 Honda hybrid vehicles that were stored prior to being on sale but became unusable by the Great East Earthquake. Further, as soon as a sufficient volume is secured, Honda will begin applying the same process and recycle rare earth metals extracted from used nickel-metal hydride batteries collected by Honda dealers through battery replacement.

Honda strives to extract not only from nickel-metal hydride batteries but also from various used parts to achieve the further recycling of limited and precious resources. Honda will remain committed to reduce the environmental footprint of the mobility society as a whole by developing fuel-efficient vehicles including hybrid vehicles, and also by strengthening networks which lead to the reuse and recycling of Honda products.

Explore further: Green energy investments worldwide surge 17 percent to $270 billion in 2014

Related Stories

Honda will recycle rare-earth metals from batteries

Apr 19, 2012

(Phys.org) -- Honda Motor Co. this week made news with its announcement of a recycling breakthrough. The car maker, which manufactures hybrid vehicles, will start recycling rare-earth metals from the nickel-metal ...

Study outlines supply chain challenges for lithium future

Sep 24, 2012

(Phys.org)—As demand increases for lithium, the essential element in batteries for everything from cameras to automobiles, a researcher at Missouri University of Science and Technology is studying potential disruptions ...

Honda to recycle rare earths to be green

Jun 20, 2012

(AP) — Honda Motor Co. said Wednesday it will start recycling rare earths and other key materials in hybrid auto batteries this year — a key innovation in the Japanese automaker's effort to be green.

Recommended for you

Reliable systems for recharging electric vehicles

15 hours ago

The success of electric vehicle networks depends on economical vehicles – and efficient power grids. Existing power lines were not designed for the loads generated by electric vehicles. Fraunhofer researchers ...

Saving energy with smart facades

16 hours ago

Glass-fronted office buildings are some of the biggest energy consumers, and regulating their temperature is a big job. Now a façade element developed by Fraunhofer researchers and designers for glass fronts ...

Latin America divided between oil and green energy

18 hours ago

Latin America spends billions of dollars subsidizing fossil fuels each year, but also has some of the world's largest renewable power programs, highlighting the energy-hungry region's divisions as it charts ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.