AI Article Synopsis
- NCM622 is a special material used in powerful batteries, but it has some problems that make it hard to use widely.
- By coating it with TiO-LiF in one simple step, the performance of NCM622 can be improved so that it lasts longer.
- The coated NCM622 keeps almost 80% of its power after many uses, which is better than the regular version that only keeps about 69%.
Article Abstract
The Ni-rich NCM622 is a promising cathode material for future high energy lithium ion batteries, but unstable electrochemical performance of NCM622 hinder its large scale commercial application. The cycling peformance of nickel-rich LiNiCoMnO (NCM622) cathode materials can be improved by surface coating. Here, a one-step approach based on TiF is used to successfully manufacture modified NCM622 cathode materials with a TiO-LiF coating. The TiO-LiF coated NCM622 preserves 79.7% capacity retention which is higher than the pure NCM622 (68.9%) at 1C after 200 cycles within 2.7-4.3 V. This material serves as the cathode for lithium-ion batteries (LIBs). The uniform TiO-LiF coating layer can alleviate structural degradation brought on by unfavorable side reactions with the electrolyte has been validated. TiO-LiF coated on NCM622 cathode materials can be modified easily by one-step approach.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10658221 | PMC |
| http://dx.doi.org/10.1039/d3ra05659g | DOI Listing |
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