Cathode in battery portable#
The development of electric vehicles and portable devices require high power and high energy density batteries. Due to these advantages, the mass loading of sulfur was increased up to 5 mg cm –2 while maintaining a high initial specific capacity of 1400 mAh g –1 and stable cyclability. As a result of the heat treatment and formation of covalent bonding between pyrolyzed PAN and sulfur, uniform distribution and enhanced conductivity were achieved, while CNT maintained structural integrity, acting as an interwoven network. Following that, the mass loading of sulfur was increased by using several layers of carbon fiber paper (CFP) with a large free space as a three-dimensional current collector. Therefore, the composite of sulfur with polyacrylonitrile (PAN) and carbon nanotubes (CNT) was synthesized by heating. This requires designing the electrode with the use of conductive agents to maintain the conductivity of the sulfur composite. This research aimed to increase the mass loading of sulfur in the composite electrode in order to increase the energy density of the lithium-sulfur (Li-S) cell. 3Institute of Batteries LLC, Nur-Sultan, Kazakhstan.2School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan.
1National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.Nurzhan Baikalov 1,2 Nurassyl Serik 2 Sandugash Kalybekkyzy 1,2 Indira Kurmanbayeva 1,3 Zhumabay Bakenov 1,2,3 Almagul Mentbayeva 1,2*
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