Want China Times, Staff Reporter 2015-06-21
An electric vehicle charging station in Shanghai, June 20, 2014. (File photo/CNS) |
Amid a
rosier outlook for new energy cars in China, the country's government has taken
measures to encourage the recycling and reuse of batteries for electric
vehicles after they are phased out following five or more years of use,
Shanghai's China Business News reports.
The cost of
batteries for a 300,000 yuan (US$48,000) electric car can be up to 100,000 yuan
(US$16,000) or more. Generally, batteries for cars are designed to retain up to
80% of their capacity but when their capacity drops to below the 80% threshold
they can no longer be used, according to the report.
Many
new-energy vehicle companies offer a battery warranty on electric cars for 10
years but if certain specific conditions of use are taken into account, the
average lifespan of batteries is five years, an anonymous industry expert said.
The problem
is how to deal with these used-up batteries, the expert added. Generally
speaking, waste electric vehicle (EV) batteries could be eventually taken back
into the recycling system for material recycling or echelon reuse.
Echelon
reuse refers to the reuse of various components of batteries. waste batteries,
which can be disassembled into battery cells and can be reused in the form of a
mono-cell.
Putting
waste EV batteries into reuse would not only help with energy conservation
efforts but also help reduce the cost of electric vehicles if the secondary
echelon reuse of EV batteries is wide enough, said Yin Chengliang, vice
president of the Shanghai Jiao Tong University Automotive Engineering School.
In July
2012, the government introduced a new policy for energy conservation and
developing a new energy vehicle industry which contains measures for EV battery
recycling and reuse to encourage the practice among battery manufacturing and
recycling companies.
Despite
multiple problems arising from the recycling process, the government has deemed
EV battery recycling a high priority.
It is
estimated that by 2020, China's new energy vehicle output could reach 5 million
and waste EV batteries could reach 120,00-170,000 tonnes. This rapid pace of
development will make battery recycling of paramount importance for the
government to prevent contamination to the environment. The government devised
a policy on December 2014 to provide subsidies for battery recycling.
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