High Active Material Loading in All‐Solid‐State Battery Electrode via Particle Size Optimization
Abstract
Low active material loading in the composite electrode of all-solid-state batteries (SSBs) is one of the main reasons for the low energy density in current SSBs. In this work, it is demonstrated with both modeling and experiments that in the regime of high cathode loading, the utilization of cathode material in the solid-state composite is highly dependent on the particle size ratio of the cathode to the solid-state conductor. The modeling, confirmed by experimental data, shows that higher cathode loading and therefore an increased energy density can be achieved by increasing the ratio of the cathode to conductor particle size. These results are consistent with ionic percolation being the limiting factor in cold-pressed solid-state cathode materials and provide specific guidelines on how to improve the energy density of composite cathodes for solid-state batteries. By reducing solid electrolyte particle size and increasing the cathode active material particle size, over 50 vol% cathode active material loading with high cathode utilization is able to be experimentally achieved, demonstrating that a commercially-relevant, energy-dense cathode composite is achievable through simple mixing and pressing method.
- Authors:
-
[1];
[2]
- Department of Materials Science and EngineeringUniversity of California Berkeley CA 94720 USA
- Department of Materials Science and EngineeringUniversity of California Berkeley CA 94720 USA, Materials Sciences DivisionLawrence Berkeley National Laboratory Berkeley CA 94720 USA
- Advanced Materials LabSamsung Research America 3 Van de Graaff Drive Burlington MA 01803 USA
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1576847
- Alternate Identifier(s):
- OSTI ID: 1576848; OSTI ID: 1760199
- Grant/Contract Number:
- DE‐AC02‐05CH11231; AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Advanced Energy Materials
- Additional Journal Information:
- Journal Name: Advanced Energy Materials Journal Volume: 10 Journal Issue: 1; Journal ID: ISSN 1614-6832
- Publisher:
- Wiley
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; all-solid-state batteries; cathode loading; cathode utilization; ionic percolation
Citation Formats
Shi, Tan, Tu, Qingsong, Tian, Yaosen, Xiao, Yihan, Miara, Lincoln J., Kononova, Olga, and Ceder, Gerbrand. High Active Material Loading in All‐Solid‐State Battery Electrode via Particle Size Optimization. Germany: N. p., 2019.
Web. doi:10.1002/aenm.201902881.
Shi, Tan, Tu, Qingsong, Tian, Yaosen, Xiao, Yihan, Miara, Lincoln J., Kononova, Olga, & Ceder, Gerbrand. High Active Material Loading in All‐Solid‐State Battery Electrode via Particle Size Optimization. Germany. https://doi.org/10.1002/aenm.201902881
Shi, Tan, Tu, Qingsong, Tian, Yaosen, Xiao, Yihan, Miara, Lincoln J., Kononova, Olga, and Ceder, Gerbrand. Fri .
"High Active Material Loading in All‐Solid‐State Battery Electrode via Particle Size Optimization". Germany. https://doi.org/10.1002/aenm.201902881.
@article{osti_1576847,
title = {High Active Material Loading in All‐Solid‐State Battery Electrode via Particle Size Optimization},
author = {Shi, Tan and Tu, Qingsong and Tian, Yaosen and Xiao, Yihan and Miara, Lincoln J. and Kononova, Olga and Ceder, Gerbrand},
abstractNote = {Low active material loading in the composite electrode of all-solid-state batteries (SSBs) is one of the main reasons for the low energy density in current SSBs. In this work, it is demonstrated with both modeling and experiments that in the regime of high cathode loading, the utilization of cathode material in the solid-state composite is highly dependent on the particle size ratio of the cathode to the solid-state conductor. The modeling, confirmed by experimental data, shows that higher cathode loading and therefore an increased energy density can be achieved by increasing the ratio of the cathode to conductor particle size. These results are consistent with ionic percolation being the limiting factor in cold-pressed solid-state cathode materials and provide specific guidelines on how to improve the energy density of composite cathodes for solid-state batteries. By reducing solid electrolyte particle size and increasing the cathode active material particle size, over 50 vol% cathode active material loading with high cathode utilization is able to be experimentally achieved, demonstrating that a commercially-relevant, energy-dense cathode composite is achievable through simple mixing and pressing method.},
doi = {10.1002/aenm.201902881},
journal = {Advanced Energy Materials},
number = 1,
volume = 10,
place = {Germany},
year = {2019},
month = {11}
}
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https://doi.org/10.1002/aenm.201902881
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