TY  - JOUR
AU  - Reissig, Friederike
AU  - Puls, Sebastian
AU  - Placke, Tobias
AU  - Winter, Martin
AU  - Schmuch, Richard
AU  - Gómez Martín, Aurora
TI  - Investigation of Lithium Polyacrylate Binders for Aqueous Processing of Ni‐Rich Lithium Layered Oxide Cathodes for Lithium Ion Batteries
JO  - ChemSusChem
VL  - 15
IS  - 11
SN  - 1864-5631
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2022-01814
SP  - e202200401
PY  - 2022
AB  - Ni-rich layered oxide cathodes are promising candidates to satisfy the increasing energy demand of lithium ion batteries for automotive applications. Aqueous processing of such materials, although being desirable to reduce costs and improve sustainability, remains challenging due to the Li + /H + -exchange upon contact with water, resulting in a pH increase and corrosion of the aluminum current collector. Herein, an example for tuning the properties of aqueous LiNi 0.83 Co 0.12 Mn 0.05 O 2 electrode pastes using a lithium polyacrylate-based binder to find the “sweet spot” for processing parameters and electrochemical performance is given. Polyacrylic acid is partially neutralized to balance high initial capacity, good cycling stability and the prevention of aluminum corrosion. Optimized LiOH/polyacrylic acid ratios in water are identified, showing comparable cycling performance to electrodes processed with polyvinylidene difluoride requiring toxic N-methyl-2-pyrrolidone as solvent. This work gives an exemplary study for tuning aqueous electrode pastes properties aiming towards a more environmentally friendly processing of Ni-rich cathodes.
LB  - PUB:(DE-HGF)16
C6  - pmid:35333434
UR  - <Go to ISI:>//WOS:000789879400001
DO  - DOI:10.1002/cssc.202200401
UR  - https://juser.fz-juelich.de/record/907018
ER  -