Study on Influencing Factors and Extension Strategies of Lithium Battery Life in New Energy Vehicles

AUTO ELECTRIC PARTS ›› 2026, Vol. 1 ›› Issue (2) : 20-22.

New Energy

Liao Houxu

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Abstract

The service life attenuation of lithium batteries for new energy vehicles is highly correlated with the material structure, interfacial stability, thermodynamic environment, and operating conditions. Its performance retention capability directly affects the vehicle range, safety, and full life cycle cost. Focusing on the key technical chains such as electrode force-chemical attenuation, lithium plating side reaction expansion, thermal field gradient stress, interface aging caused by excessive voltage, and cyclic loss caused by high-rate fast charging, this paper establishes a systematic analysis framework for the life-impact mechanisms. On this basis, engineering solutions for life extension are proposed from five aspects: electrode structure enhancement, interface regulation, thermal control equilibrium, voltage window management, and dynamic charging control. This provides an operable technical path for the safe and reliable operation of power batteries and the establishment of a long-life system.

Key words

lithium-ion battery / life decay / power battery / interfacial stability / thermal management / charging strategy

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Liao Houxu. Study on Influencing Factors and Extension Strategies of Lithium Battery Life in New Energy Vehicles[J]. AUTO ELECTRIC PARTS. 2026, 1(2): 20-22