We propose a innovative concept to boost the electrochemical performance of cathode composite electrodes using surface-modified carbons with hydrophilic moieties to increase their dispersion in a Lithium Nickel Manganese Cobalt Oxide (NMC) cathode and in-situ generate Li-rich carbon surfaces. Using a rapid aqueous process, the hydrophilic carbon is effectively dispersed in NMC particles followed by the conversion of its acid surface groups (e.g. -COOH), which interact with the NMC particles due to their basicity, into grafted Li salt (-COOLi). The solid-state batteries prepared using the cathode composites with surface-modified carbon exhibit better electrochemical performance. Such modified carbons led to a better electronic conduction path as well as facilitating Li ions transfer at the carbon/NMC interface due to the presence of lithiated carboxylate groups on their surface.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7367347 | PMC |
| http://dx.doi.org/10.1038/s41598-020-68865-8 | DOI Listing |
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