Lithium-ion battery is one of the key components in electric vehicles which has been widely used as the carrier for transportation electrification. Prolonging lifetime of lithium-ion batteries will significantly reduce the resulting economic burden and promote the large-scale development of electric vehicles. In this study, cycle life tests are conducted on commercial batteries, which reveals that loss of electrolyte is one of the key reasons leading to a rapid battery degradation. A method using electrolyte refilling is proposed, and it is found that the method protects the cells from rapid decay. After refilling electrolyte, the internal resistance decreases by 64.5%, and the cycle lifetime increases by more than 600 cycles. The electrolyte refilling method improve the feasibility of battery second utilization, improving the environmental friendliness of electric vehicles.
Electrolyte refilling to prolong lithium-ion battery lifetime for Electric Vehicles
2024-10-10
840624 byte
Conference paper
Electronic Resource
English
Safe lithium-ion battery with ionic liquid-based electrolyte for hybrid electric vehicles
Online Contents | 2011
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