电池2026，Vol.56Issue(1)：23-29,7.DOI:10.19535/j.1001-1579.2026.01.004
钠离子和锂离子电池老化及产热特性对比
Comparison of aging and heat generation characteristics between sodium-ion and Li-ion batteries
摘要
Abstract
Understanding the characteristics of sodium-ion batteries is crucial for thermal management and safety control of the battery.Different types of sodium-ion batteries and Li-ion batteries are selected as research subjects to systematically compare the two battery systems in terms of capacity retention,cycling degradation and heat generation characteristics under various operating conditions.Under low-temperature conditions,sodium-ion batteries exhibit higher capacity ratio to that at 25 ℃.At 0 ℃,all three sodium-ion batteries retain approximately 95％,while at-15 ℃,the two batteries with relatively lower capacities maintain about 88％.The ratios are higher than those of Li-ion batteries under the same conditions.During cycling,sodium-ion batteries exhibit more rapid capacity fade and greater increase in internal resistance,while Li-ion batteries exhibit a slow overall variation.Surface temperature tests show that battery heating increases notably with the increase of temperature and rate.At 30 ℃ and 2.00 C,the 1.3 Ah sodium-ion battery rises by 9.2 ℃,compared to 5.4 ℃ at 30 ℃ and 1.00 C.Compared to Li-ion batteries,sodium-ion batteries exhibit larger temperature rise fluctuations,which tends to increase with capacity.关键词
钠离子电池/锂离子电池/电特性/产热特性/老化特性/放热温升Key words
sodium-ion battery/Li-ion battery/electrical characteristic/heat generation characteristic/aging characteris-tic/heat generation and temperature rise分类
信息技术与安全科学引用本文复制引用
林武震,胡锦洋,熊一安,黄瑞,俞小莉..钠离子和锂离子电池老化及产热特性对比[J].电池,2026,56(1):23-29,7.基金项目
浙江省自然科学基金(LD25E070002),浙江省大学生科技创新项目(2025R401136) （LD25E070002）
