Issue 41, 2015 - New materials for anodes for sodium-ion energy storage batteries come out

The new energy storage battery technology developed by the New Electrochemical Energy Storage Technology Laboratory of Huazhong University of Science and Technology has recently achieved the latest research results - the first sulfur-doped amorphous carbon as the anode material
of high-performance sodium-ion energy storage batteries.

Sodium-ion batteries, which have a similar working principle to lithium-ion batteries, have potential application prospects
in the field of large-scale energy storage.
However, the radius of sodium ions is much larger than that of lithium ions, and it is very difficult to
develop suitable sodium-embedded electrode materials.
The laboratory uses cheap organic small molecule NTCDA and elemental sulfur as raw materials to obtain sulfur-doped amorphous carbon by high-temperature pyrolysis, and uses it as an anode material
for sodium-ion batteries.
The reversible sodium storage capacity of the material is as high as 516mAh/g, and the capacity retention rate is as high as 85.
9% after 1000 cycles, which is currently the best comprehensive performance of sodium storage carbon anode
.
This research points out a new direction
for the realization of high-capacity, high-efficiency and high-cycle sodium-ion batteries.

It is reported that the new electrochemical energy storage technology laboratory is jointly established by the State Key Laboratory of Strong Electromagnetic Engineering and New Technology and the School of Materials of Huazhong University of Science and Technology, which is oriented to the application of energy storage in power systems, and is committed to the research of new energy materials and devices, including low-cost liquid metal batteries, sodium-ion batteries and lithium-sulfur batteries
.
(Medium)