Interfacial kinetics induced phase separation enhancing low-temperature performance of lithium-ion batteries

Li，Kaikai1,2; Lin，Dongmei2; Huang，He3; Liu，Dongqing4; Li，Baohua4; Shi，San Qiang2; Kang，Feiyu4; Zhang，Tong Yi1,5; Zhou，Limin2,6

2020-09-01

10.1016/j.nanoen.2020.104977

Nano Energy   影响因子和分区

2211-2855

2211-3282

Understanding the temperature dependence of phase transitions occurred in electrode materials is crucial for improving the low-temperature performance of Li-ion batteries. In this work, we find an unusual temperature dependence in the phase transition of TiO nanoparticles on dynamic Li intercalation, with a decrease in temperature resulting in the formation of a supersaturated solid solution phase. Kinetic analyses reveal that Li redistribution is facilitated at high temperature while limited at low temperature. This difference manifests as a thermodynamically-controlled phase separation at high temperature and a kinetically-controlled formation of a supersaturated solid solution phase at low temperature. Facilitating the phase separation by enhancing the interfacial kinetics proves effective to improve the low-temperature performance. This study provides a comprehensive and in-depth understanding of the temperature dependence of the lithiation-induced phase transition, which has important implications for the development of the next generation of all-climate rechargeable batteries.

Interfacial kinetics Lithiation Phase transitions Raman spectroscopy Supersaturated solid solution phase Temperature dependence

SCI ; EI

英语

通讯

General Research Fund from Hong Kong Research Grants Council[15210718] ; 111 project from the State Administration of Foreign Experts Affairs[D16002] ; Ministry of Education, PRC[2017BT01N111] ; Research Teams Project of Guangdong Pearl River Talents Program[2017BT01N111]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

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

WOS:000560729000010

ELSEVIER

20202708898824

Lithium-ion batteries ; Phase transitions ; Carbon dioxide ; Kinetics ; Lithium compounds ; Temperature distribution ; Solid solutions ; Titanium dioxide ; TiO2 nanoparticles

Fluid Flow, General:631.1 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Classical Physics; Quantum Theory; Relativity:931 ; Solid State Physics:933

2-s2.0-85087282315

Scopus

1.School of Materials Science and Engineering,Harbin Institute of Technology,Shenzhen,China
2.Department of Mechanical Engineering,The Hong Kong Polytechnic University,Hong Kong
3.Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,China
4.National Local Joint Engineering Laboratory of Carbon Functional Materials,Graduate School at Shenzhen,Tsinghua University,Shenzhen,518055,China
5.Materials Genome Institute,Shanghai University,Shanghai,333 Nanchen Road,200444,China
6.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,China

Li，Kaikai,Lin，Dongmei,Huang，He,et al. Interfacial kinetics induced phase separation enhancing low-temperature performance of lithium-ion batteries[J]. Nano Energy,2020,75.

Li，Kaikai.,Lin，Dongmei.,Huang，He.,Liu，Dongqing.,Li，Baohua.,...&Zhou，Limin.(2020).Interfacial kinetics induced phase separation enhancing low-temperature performance of lithium-ion batteries.Nano Energy,75.

Li，Kaikai,et al."Interfacial kinetics induced phase separation enhancing low-temperature performance of lithium-ion batteries".Nano Energy 75(2020).