High-performance battery electrodes via magnetic templating

J. S. Sander, R. M. Erb, L. Li, A. Gurijala and Y.-M. Chiang ()
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J. S. Sander: Department of Materials Science and Engineering
R. M. Erb: Northeastern University
L. Li: Department of Materials Science and Engineering
A. Gurijala: Northeastern University
Y.-M. Chiang: Department of Materials Science and Engineering

Nature Energy, 2016, vol. 1, issue 8, 1-7

Abstract: Abstract In lithium-ion batteries, the critical need for high-energy-density, low-cost storage for applications ranging from wearable computing to megawatt-scale stationary storage has created an unmet need for facile methods to produce high-density, low-tortuosity, kinetically accessible storage electrodes. Here we show that magnetic control of sacrificial features enables the creation of directional pore arrays in lithium-ion electrodes. The directional pores result in faster charge transport kinetics and enable electrodes with more than threefold higher area capacity (for example, >12 mAh cm−2 versus

Date: 2016
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DOI: 10.1038/nenergy.2016.99

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