| DOI | Resolve DOI: https://doi.org/10.1149/1.1836972 |
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| Author | Search for: Zheng, Tao; Search for: McKinnon, W. R.1; Search for: Dahn, J. R. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Subject | absorption; additives; bonds (chemical); carbon; electrochemistry; energy storage; hydrogen; hysteresis; lithium |
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| Abstract | We studied lithium insertion in hydrogen-containing carbons heated at temperatures near 700�C. High capacities with large hysteresis (lithium insertion into these carbons at nearly 0 V and removal at nearly 1 V) were shown to be proportional to the hydrogen content of the samples. It is believed that the lithium atoms may bind on hydrogen-terminated edges of hexagonal carbon fragments, causing a change in the bond from sp2 to sp3. We have carefully studied the electrochemical insertion of lithium in hydrogen-containing carbons using a variety of charge-discharge rates and cycling temperatures. These measurements allow the hysteresis to be quantified. A simple model, which treats the bonding change as an activated process, is used to model the hysteresis in the cells qualitatively. |
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| Publication date | 1996-06-30 |
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| In | |
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| Language | English |
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| NPARC number | 12337953 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 116b9201-50df-49be-8a2b-6e20808cd83c |
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| Record created | 2009-09-10 |
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| Record modified | 2020-03-20 |
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