Progress and prospect of engineering research on energy storage sodium sulfur battery—Material and structure design for improving battery safety

doi:10.19799/j.cnki.2095-4239.2021.0139

Abstract

Abstract:

As an important energy storage technology, sodium sulfur battery has GWh-class installed capacity in the global energy storage market. However, its safety problem has become a major factor restricting its further development. This paper first introduces the structure, operating principle and commercial development status of sodium sulfur battery, and then in view of the potential danger of this battery, proposes the resolution strategies based on the cell level and the module level. The strategies of toughening solid electrolyte, reducing local current density, enhancing thermal mechanical stability of sealing materials, anti-corrosion of cell shell, thermal management and fire source isolation of the battery incubator are analyzed. The research and development of materials and structure designs involving these strategies are reviewed, and the future research directions of sodium sulfur battery on low temperature type and high temperature flow type are presented finally.

Key words: sodium sulfur battery, energy storage, engineering progress, battery security

CLC Number:

TQ 152

Yingying HU, Xiangwei WU, Zhaoyin WEN. Progress and prospect of engineering research on energy storage sodium sulfur battery—Material and structure design for improving battery safety[J]. Energy Storage Science and Technology, 2021, 10(3): 781-799.

Figures/Tables 20

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References 132

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