Improving Fast Charging in Lithium-Ion Batteries with a New Anode Design
Author Information
Author(s): Liao Xingqun, Hu Dalin, Yu Lijuan, Li Bin, Xiao Feng, Wang Shanxing
Primary Institution: School of Chemistry and Materials Engineering, Huizhou University, Huizhou, China
Hypothesis
Can a spherical hard carbon/graphite porous electrode improve the fast charging performance of lithium-ion batteries?
Conclusion
The new anode design significantly enhances fast charging performance and cycle life of lithium-ion batteries.
Supporting Evidence
- The discharge capacity ratio at 3C improved by about 40% at 25°C.
- At 1C, the improvement was about 18% at 0°C.
- Capacity retention after 300 cycles increased by 12% at 25°C and 14% at 50°C.
Takeaway
This study shows that mixing hard carbon with graphite in battery anodes helps them charge faster and last longer.
Methodology
The study involved preparing different ratios of spherical hard carbon and graphite, followed by electrochemical performance tests on the resulting anodes.
Limitations
The performance of the anode may decrease if too much hard carbon is added, leading to poor ion transport.
Digital Object Identifier (DOI)
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