Exploring the Limits of the Rapid-Charging Performance of Graphite as the Anode in Lithium-Ion Batteries
dc.contributor.author | Xu, Wei | |
dc.contributor.author | Welty, Connor | |
dc.contributor.author | Peterson, Margaret R. | |
dc.contributor.author | Read, Jeffrey A. | |
dc.contributor.author | Stadie, Nicholas P. | |
dc.date.accessioned | 2022-09-30T22:24:03Z | |
dc.date.available | 2022-09-30T22:24:03Z | |
dc.date.issued | 2022-01 | |
dc.description.abstract | Graphite is, in principle, applicable as a high-power anode in lithium-ion batteries (LIBs) given its high intralayer lithium diffusivity at room temperature. However, such cells are known to exhibit poor capacity retention and/or undergo irreversible side reactions including lithium plating when charged at current rates above ∼2 C (∼740 mA g−1). To explore the inherent materials properties that limit graphite anodes in rapid-charge applications, a series of full-cells consisting of graphite as the anode and a standard Li[Ni0.8Mn0.1Co0.1]O2 (NMC811) cathode was investigated. Instead of a conventional cathode-limited cell design, an anode-limited approach was used in this work to ensure that the overall cell capacity is only determined by the graphite electrode of interest. The optimized N:P capacity ratio was determined as N/P = 0.67, enabling stable cycling across a wide range of charging rates (4–20 C) without inhibition by the NMC811 cathode. The results show that unmodified, highly crystalline graphite can be an excellent anode for rapid-charge applications at up to 8 C, even with a standard electrolyte and NMC811 cathode and in cells with 1.0 mAh cm−2 loadings. As a rule, capacity and specific energy are inversely proportional to crystallite size at high rates; performance can likely be improved by electrolyte/cathode tuning. | en_US |
dc.identifier.citation | Xu, W., Welty, C., Peterson, M. R., Read, J. A., & Stadie, N. P. (2022). Exploring the limits of the rapid-charging performance of graphite as the anode in lithium-ion batteries. Journal of The Electrochemical Society, 169(1), 010531. | en_US |
dc.identifier.issn | 0013-4651 | |
dc.identifier.uri | https://scholarworks.montana.edu/handle/1/17270 | |
dc.language.iso | en_US | en_US |
dc.publisher | The Electrochemical Society | en_US |
dc.rights | cc-by-nc-nd | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
dc.subject | graphite anode lithium ion batteries | en_US |
dc.title | Exploring the Limits of the Rapid-Charging Performance of Graphite as the Anode in Lithium-Ion Batteries | en_US |
dc.type | Article | en_US |
mus.citation.extentfirstpage | 1 | en_US |
mus.citation.extentlastpage | 11 | en_US |
mus.citation.issue | 1 | en_US |
mus.citation.journaltitle | Journal of The Electrochemical Society | en_US |
mus.citation.volume | 169 | en_US |
mus.identifier.doi | 10.1149/1945-7111/ac4b87 | en_US |
mus.relation.college | College of Letters & Science | en_US |
mus.relation.department | Chemistry & Biochemistry. | en_US |
mus.relation.university | Montana State University - Bozeman | en_US |