Phase Change Nanocapsules Enabling Dual-Mode Thermal Management for Fast-Charging Lithium-Ion Batteries

Geng, Xin1; Wang, Chenyang1; Chen, Jing1; Wang, Hailong1; Liu, Wei1; Hu, Linyu2; Lei, Jingxin3; Liu, Zhimeng1; He, Xin1,4

2024-04-19

10.1021/acsnano.4c00533

ACS NANO   影响因子和分区

1936-0851

1936-086X

The fast-charging performance of conventional lithium-ion batteries (LIBs) is determined by the working temperature. LIBs may fail to work under harsh conditions, especially in the low-temperature range of the local environment or in the high-temperature circumstances resulting from the release of substantial Joule heating in the short term. Constructing a thermal engineering framework for thermal regulation and maintaining the battery running at an appropriate temperature range are feasible strategies for developing temperature-tolerant, fast-charging LIBs. In this work, we prepare phase change nanocapsules as a thermal regulating layer on the cell surface. The polyurea shells of the nanocapsules are decorated with polyaniline, where the molecular vibration of polyaniline is enhanced under solar irradiation, enabling light-to-heat conversion that achieves an effective temperature increment at low temperatures. Based on the large latent heat storage capability of the n-octadecane core in the nanocapsules, the thermal regulating layer is sufficient to modulate strong heat release when operating LIBs at a high current rate, which efficiently prevents strong side reactions at high temperatures or even the occurrence of thermal runaway. This work highlights the promise of optimizing the operating temperature with a thermal regulator to ensure the safety and performance stability of fast-charging LIBs.

nanocapsules phase change materials photothermalconversion lithium-ion batteries thermal management

SCI ; EI

英语

其他

Sichuan?Provincial?Postdoctoral?Science Foundation[52203272] ; National Natural Science Foundation of China[2022SCU12068] ; Research Foundation for the Postdoctoral Program of Sichuan University[2023NSFSC1131] ; Sichuan Science and Technology Program[2023T160444] ; China Postdoctoral Science Foundation[TB2022062]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001242275800001

AMER CHEMICAL SOC

Web of Science

1.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
3.Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
4.Sichuan Univ, Coll Elect Engn, Chengdu 610065, Peoples R China

Geng, Xin,Wang, Chenyang,Chen, Jing,et al. Phase Change Nanocapsules Enabling Dual-Mode Thermal Management for Fast-Charging Lithium-Ion Batteries[J]. ACS NANO,2024,18(17).

Geng, Xin.,Wang, Chenyang.,Chen, Jing.,Wang, Hailong.,Liu, Wei.,...&He, Xin.(2024).Phase Change Nanocapsules Enabling Dual-Mode Thermal Management for Fast-Charging Lithium-Ion Batteries.ACS NANO,18(17).

Geng, Xin,et al."Phase Change Nanocapsules Enabling Dual-Mode Thermal Management for Fast-Charging Lithium-Ion Batteries".ACS NANO 18.17(2024).