Open AccessSpontaneous combustion of lithium batteries and its preventive measures
Author(s) -
Qian Zhang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/677/5/052030
Subject(s) - battery (electricity) , lithium (medication) , automotive engineering , energy storage , combustion , lithium battery , automotive industry , thermal runaway , power (physics) , process engineering , environmental science , engineering , medicine , ion , chemistry , physics , organic chemistry , quantum mechanics , aerospace engineering , ionic bonding , endocrinology
The new round of global scientific and technological revolution and industrial transformation are developing vigorously. The integration of automobiles with the energy, communications and other industries has been accelerated, and profound changes have taken place in automobile product forms, transportation modes, energy consumption structure and social operation modes, and the new-energy automobile industry is facing unprecedented opportunities for development. However, lithium battery, the main component of new energy vehicles, has become a power source and an energy storage power source for peak-frequency modulation due to its advantages of high voltage, good cycling performance, high specific energy and small environmental pollution. With the development of new battery material technology, the energy density and electrochemical performance of batteries have been greatly improved, but this often leads to the decrease of safety performance, resulting in frequent fire accidents of lithium batteries. In this paper, the fire causes of lithium batteries are analyzed and the frontier research on fire causes of lithium batteries is described. Secondly, the combustion mechanism of lithium battery is analyzed, including the process of thermal runaway and diffusion. Thirdly, the improvement measures in material, technology, design and control system of lithium battery are put forward. It is hoped that these Suggestions can promote the prevention of spontaneous combustion of lithium batteries.