A Biomass‐Based Integral Approach Enables Li‐S Full Pouch Cells with Exceptional Power Density and Energy Density

authored by: Yuping Liu, Yvo Barnscheidt, Manhua Peng, Frederik Bettels, Tao He, Fei Ding, Lin Zhang
Abstract: Lithium-sulfur (Li-S) batteries, as part of the post-lithium-ion batteries (post-LIBs), are expected to deliver significantly higher energy densities. Their power densities, however, are today considerably worse than that of the LIBs, limiting the Li-S batteries to very few specific applications that need low power and long working time. With the rapid development of single cell components (cathode, anode, or electrolyte) in the last few years, it is expected that an integrated approach can maximize the power density without compromising the energy density in a Li-S full cell. Here, this goal is achieved by using a novel biomass porous carbon matrix (PCM) in the anode, as well as N-Co9S8 nanoparticles and carbon nanotubes (CNTs) in the cathode. The authors' approach unlocks the potential of the electrodes and enables the Li-S full pouch cells with unprecedented power densities and energy densities (325 Wh kg−1 and 1412 W kg−1, respectively). This work addresses the problem of low power densities in the current Li-S technology, thus making the Li-S batteries a strong candidate in more application scenarios.
Organisation(s): Institute of Solid State Physics
Surfaces Science Section
Institute of Electronic Materials and Devices
Laboratory of Nano and Quantum Engineering
Type: Article
Journal: Advanced science
Volume: 8
Pages: 2101182
ISSN: 2198-3844
Publication date: 21.07.2021
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Medicine (miscellaneous), General Chemical Engineering, General Materials Science, Biochemistry, Genetics and Molecular Biology (miscellaneous), General Engineering, General Physics and Astronomy
Sustainable Development Goals: SDG 7 - Affordable and Clean Energy
Electronic version(s): https://doi.org/10.1002/advs.202101182 (Access: Open)