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

verfasst von

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.

Organisationseinheit(en)

Institut für Festkörperphysik
Abt. Atomare und molekulare Strukturen (ATMOS)
Institut für Materialien und Bauelemente der Elektronik
Laboratorium für Nano- und Quantenengineering

Typ

Artikel

Journal

Advanced science

Band

8

Seiten

2101182

ISSN

2198-3844

Publikationsdatum

21.07.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Medizin (sonstige), Allgemeine chemische Verfahrenstechnik, Allgemeine Materialwissenschaften, Biochemie, Genetik und Molekularbiologie (sonstige), Allgemeiner Maschinenbau, Allgemeine Physik und Astronomie

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1002/advs.202101182 (Zugang: Offen)