中文 |
中文

Special Reports

Home / Special Reports / Carbon Peaking & Carbon Neutrality: CAS in Action / Multimedia

New Material Helps Solve Battery Problem for Cars

Oct 14, 2020

[video:20201016]

An international team, including members from the University of Science and Technology of China, recently published details in the journal Science about an engineered electrode material with a potential to be used in advanced batteries.

Energy enters and leaves the battery by electrochemical reactions in electrodes, so efficient and effective lithium-ion transfer is of utmost importance, especially in transferring the energy from the battery to the device via the anode, according to one of the authors, Jin Hongchang of USTC in Hefei, Anhui province.
The researchers turned to black phosphorus, a material that has been considered for use in electrodes before but is usually abandoned because of its tendency to deform along its layered edges, making the transfer of lithium ions inefficient and rendering a lower quality material, according to Ji Hengxing, professor at USTC and another of the paper's authors.
By combining black phosphorus with graphite, the chemical bonds between the two materials stabilizes and the problematic edge changes are prevented, Ji said.
The team also tackled another issue hindering the material: Electrolytes can break down into less conductive pieces and build up on the surface of an electrode, inhibiting ion transfer into the electrode material, like dust obscuring light through glass.
The team applied a thin polymer gel coating to the electrode materials and reinforced the ion transport path, effectively preventing the problem.
"With the new technological breakthrough, it is possible to fully charge an electric vehicle in about 10 minutes, providing a cruising range of about 500 kilometers," Ji said.
With the popularity of electric vehicles rising, the technology for a high-capacity lithium-ion battery that charges quickly and discharges slowly remains an unrealized goal — but researchers are now closer than ever. (China Daily)
Contact

Jane FAN Qiong

University of Science and Technology of China

E-mail:

Related Articles
Figure 2.jpg
Advanced Lead-free Battery Systems for Low-speed Electric Vehicles
Jan 18, 2017

Researchers from Qingdao Institute of Bioenergy and Bioprocess Technology have creatively proposed three promising strategies for lead-free battery systems: low-cost lithium (Li) ion batteries, low-cost aqueous zinc (Zn)-based batteries, and novel magnesium (Mg) battery s...

China Develops Battery to Store Renewable Energy
May 09, 2018

Chinese scientists have developed a lead-carbon battery for storing power generated from solar panels and windmills, through which the electricity supply is stable for use. An energy storage system with the batteries has been piloted in Dalian Institute of Chemical Physic...

Contact Us

  • 86-10-68597521 (day)

    86-10-68597289 (night)

  • 86-10-68511095 (day)

    86-10-68512458 (night)

  • cas_en@cas.cn

  • 52 Sanlihe Rd., Xicheng District,

    Beijing, China (100864)

Copyright © 2002 - Chinese Academy of Sciences