期刊
CHEMICAL COMMUNICATIONS
卷 53, 期 17, 页码 2610-2613出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc00301c
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资金
- National Science Foundation of the United States [1507391]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1507391] Funding Source: National Science Foundation
The rate capability of hard carbon has long been underestimated in prior studies that used carbon/Na two-electrode half-cells. Through a three-electrode cell setup, we discover that it is the overpotential of the sodium counter electrode that drives the half-cells to the lower cutoff potential prematurely during hard carbon sodiation, particularly at high current rates, which prevents the hard carbon anode from being fully sodiated.
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