Open AccessResearch on high energy density portable power supply based on metal-air battery
Author(s) -
Changfu Wang,
Yaohui Wang,
Bin Zhang,
Hao Sun,
Wanli Xu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1983/1/012064
Subject(s) - battery (electricity) , electrode , power density , power (physics) , range (aeronautics) , energy density , electrical engineering , energy (signal processing) , materials science , automotive engineering , noise (video) , computer science , engineering , engineering physics , chemistry , composite material , physics , statistics , mathematics , image (mathematics) , quantum mechanics , artificial intelligence
Because of the increasing number of personal electronic devices, there is an urgent demand for portable power supplies with high energy density. Metal-air batteries have the advantages of high energy density, high safety, good infrared concealment, no vibration and noise, low self-discharge rate. They can effectively meet the needs of users. In this paper, we studied the influence of electrode distance, single cell structure and battery module of magnesium-air battery on battery discharge performance, and designed a battery module structure to meet the requirements of high energy density. The results show that, the mass energy density of the module assembled with cells consisting of two positive electrodes and one negative electrodes cell is higher than other modules, and the discharge performance is best when the electrode distance is in the range of 2 mm to 3.5 mm.