Li4Ti5O12−TiO2 Composite Coated on Carbon Foam as Anode Material for Lithium Ion Capacitors: Evaluation of Rate Performance and Self-Discharge
Zhou H, Ma Q, Yang W, Lu X (2020)
Publication Language: English
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 6
Pages Range: 280-284
Journal Issue: 2
Abstract
Li4Ti5O12-TiO2 (LTO-TO) composite is coated on carbon foam (CF) for anode of lithium ion capacitors (LICs). The resulting CF@LTO-TO electrodes with varied mass loadings of LTO-TO exhibit much improved rate performance compared to pristine LTO electrode. Specifically, asymmetric LICs based on activated carbon cathode and CF@LTO-TO anode (AC//CF@LTO-TO) with 25 wt% of LTO-TO delivers a specific capacity of 65 mAh g−1 at 300 C. In addition, the self-discharge rates of the LICs are evaluated. It is found that AC//CF@LTO-TO LIC with 45 wt% of LTO-TO shows much reduced self-discharge rate (open circuit voltage drops from 2.5 to 1.1 V in 144 hours) relative to AC//CF@LTO-TO with different LTO-TO mass loadings. The results of this study suggest that the introduction of TO in LTO anode can affect both the rate performance and the self-discharge behavior, which may be due to the fast faradaic reaction kinetic of TO and the rich LTO-TO grain boundary interfaces.
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APA:
Zhou, H., Ma, Q., Yang, W., & Lu, X. (2020). Li4Ti5O12−TiO2 Composite Coated on Carbon Foam as Anode Material for Lithium Ion Capacitors: Evaluation of Rate Performance and Self-Discharge. ChemNanoMat, 6(2), 280-284. https://doi.org/10.1002/cnma.201900682
MLA:
Zhou, Huanhuan, et al. "Li4Ti5O12−TiO2 Composite Coated on Carbon Foam as Anode Material for Lithium Ion Capacitors: Evaluation of Rate Performance and Self-Discharge." ChemNanoMat 6.2 (2020): 280-284.
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