Technical | 73
Positively charged lithium ions flow to the anode
and the negatively charged ions flow to the
cathode.
A dual-carbon battery design was developed
in the 1970s in Japan, but the available
technology didn’t exploit the concept. Tatsumi
Ishihara, an applied chemistry professor at
Kyushu University, began working on the
dual-carbon battery design in the early 2000s,
employing ‘carbon complex’, an organic carbon
derived from cotton. Professor Ishihara recenty
joined Dr Kaname Takeya and Power Japan
Plus to bring the dual-carbon battery into
production.
Power Japan Plus claims the dual-carbon
battery can be recharged at 20 times the rate
of current lithium ion batteries and there is
no temperature change during operation or
charging. It also claims total discharge does the
battery no harm, and promises an impressive
3000 charging-cycle life span.The Ryden battery offers the same energy
density of current lithium-ion batteries, so would
require recharging after the same amount of
energy depletion, but recharging is said to be
much quicker. To watch a video on the dual
carbon battery and why it holds significant
promise for the automotive industry, click here.