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

March 4, 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: Honda will recycle rare-earth metals from batteries

Related Stories

Honda will recycle rare-earth metals from batteries

April 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 hydride ...

Study outlines supply chain challenges for lithium future

September 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 ...

New catalyst to significantly reduce use of precious metals

September 6, 2012

Honda Motortoday announced the development of a new catalyst which reduces by 50% the use of rhodium, one of the precious metals used in a catalyst. Honda will adopt this new catalyst first to the North American version of ...

Honda to recycle rare earths to be green

June 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

Samsung to disable Note 7 phones in recall effort

December 9, 2016

Samsung announced Friday it would disable its Galaxy Note 7 smartphones in the US market to force remaining owners to stop using the devices, which were recalled for safety reasons.

Swiss unveil stratospheric solar plane

December 7, 2016

Just months after two Swiss pilots completed a historic round-the-world trip in a Sun-powered plane, another Swiss adventurer on Wednesday unveiled a solar plane aimed at reaching the stratosphere.

Solar panels repay their energy 'debt': study

December 6, 2016

The climate-friendly electricity generated by solar panels in the past 40 years has all but cancelled out the polluting energy used to produce them, a study said Tuesday.

0 comments

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.