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ENERGY TECH
Electrochemical performance of lithium-ion capacitors
by Staff Writers
Washington DC (SPX) Apr 24, 2017


This image shows the electrochemical performance of lithium-ion capacitors using pre-lithiated multiwalled carbon nanotubes as anode. Image courtesy Nanchang University.

How do internal short circuit? Researcher Minho Kim has published his paper "A fast and efficient pre-doping approach to high energy density lithium-ion hybrid capacitors".

Internal short-circuit method (ISC) is also called direct contact (DC) method. The pre-lithiated can achieved through direct physical contact between negative electrode and lithium metal with electrolyte in pressure.

In this method, the pre-lithiation process was completed by a self-discharge mechanism. Electrons will pass through the contact point between the lithium metal and anode in the effect of potential difference. The process of ISC is simple, fast and controllable.

In this paper, Pre-lithiated multiwalled carbon nanotubes and activated carbon(AC) materials were used as anode and cathode respectively for Lithium-ion capacitors (LICs). Pre-lithiated multiwalled carbon nanotube anode was prepared by internal short circuit approach (ISC).

LICs have higher power density than lithium-ion batteries and higher energy density than the electric double layer capacitors(EDLCs). LICs are capable of storing approximately 5 times energy higher than conventional EDLCs. LICs were considered to be one of the best energy storage device, which is expected to have broad prospects in electric cars, solar energy, wind energy and other areas.

Research paper

ENERGY TECH
NYSERDA Announces $15.5 Million Available for Energy Storage Projects to Support the Electric Grid
Albany NY (SPX) Apr 20, 2017
The New York State Energy Research and Development Authority (NYSERDA) has announced that a total of $15.5 million in funding is available for energy storage projects that can support renewable energy technologies, save customers money, and ease peak electric demand burdens on the power grid. The funding is part of the state's long-term investment in the energy storage sector as part of Governor ... read more

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