Abstract
Roll-to-roll powder-to-film dry processing (DP) and single-crystal (SC) active materials (AMs) with many advantages are two hot topics of lithium-ion batteries (LIBs). However, DP of SC AMs for LIBs is rarely reported. Consequently, the impact of SC AMs on dry-processed LIBs is not well understood. Herein, for the first time, via a set of experimental and theoretical studies of the conventional polycrystalline-AM- and SC-AM-based DPed electrodes (DPEs), this work not only reports a high-performance dry SC-AM cathode for LIB manufacturing, but also establishes some fundamental understanding of SC-based dry-processed electrodes, including their morphology, structure, mechanical strength, electronic conductivity and LIB electrochemical behavior. The results suggest that DP of SC AMs is promising, which can dramatically improve the electrochemical kinetics at electrode level and particle level. Specifically, for the rate capability and long-term cyclability in full cells, SC DPEs exhibit a discharge specific capacity of 152.1 mAh g−1 at 1C and a capacity retention rate of 79.9 % at C/3 over 500 cycles, which are superior to those of PC DPEs (135.6 mAh g−1 and 68.3 %) at the same conditions and are further confirmed by the simulation data from the theoretical modelling study. Therefore, this comprehensive work marks a significant milestone for DP strategy and SC AMs, enlightening future research and development of LIB manufacturing.
Original language | English |
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Article number | 157194 |
Journal | Chemical Engineering Journal |
Volume | 500 |
DOIs | |
State | Published - Nov 15 2024 |
Funding
The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory (\u201CArgonne\u201D). Argonne, a U.S. Department of Energy (DOE) Office of Science laboratory, is operated under Contract DE-AC02-06CH11357. Part of this research was conducted at Oak Ridge National Laboratory (ORNL), managed by UT Battelle, LLC, for the U.S. Department of Energy (DOE) under contract DE-AC05-00OR22725, and was sponsored by the DOE Advanced Materials & Manufacturing Technologies Office (DE-EE0009109). The SEM characterization was conducted at the Center for Nanophase Materials Sciences at ORNL, which is a DOE Office of Science User Facility. B. S. was funded by the Institute for Smart, Secure and Connected Systems (ISSACS) at Case Western Reserve University. The authors thank Cabot Corporation and Arkema for their material and technical assistance. The authors also thank Ben La Riviere at ORNL for experimental assistance. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The DOE will provide public access to these results of federally sponsored research under the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Funders | Funder number |
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United States Government | |
Institute for Smart, Secure and Connected Systems | |
DOE Public Access Plan | |
Oak Ridge National Laboratory | |
Case Western Reserve University | |
Argonne National Laboratory | |
ISSACS | |
Office of Science | |
U.S. Department of Energy | DE-AC02-06CH11357 |
U.S. Department of Energy | |
UT-Battelle | DE-AC05-00OR22725 |
UT-Battelle | |
Advanced Materials and Manufacturing Technologies Office | DE-EE0009109 |
Advanced Materials and Manufacturing Technologies Office |
Keywords
- Dry processing
- Electrode engineering
- High-loading electrodes
- Lithium-ion batteries
- Single crystal