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최윤석

Choi, YunSeok
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Zero fire battery concept: water-in-battery

Author(s)
Bae, JunhoBae, HyuntaeCho, JihunJung, JaebeomChoi, YunseokKim, Youngsik
Issued Date
2022-02
DOI
10.1039/d1ta10896d
URI
https://scholarworks.unist.ac.kr/handle/201301/57672
Fulltext
https://pubs.rsc.org/en/content/articlelanding/2022/TA/D1TA10896D
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v.10, no.12, pp.6481 - 6488
Abstract
The energy storage system (ESS) safety issue caused by battery thermal runaway is becoming severe, and its solution for perfect fire suppression method has not yet been optimized. Herein, we propose the concept of a Water-in-Battery (WiB) system, which utilizes water for functional elements in an existing battery to manage the generated heat and remove the fire-causing elements in the battery. Under general conditions (at high C-rates and high temperatures), the system acts as a coolant and extends the battery life. Under abuse conditions such as overcharging or overheating, the water in the WiB delays the thermal runaway of the battery. In addition, the system blocks fire by eliminating oxygen and decreasing the temperature of the battery. Moreover, this system can be simply implemented in an existing ESS by a low-cost and eco-friendly method.
Publisher
ROYAL SOC CHEMISTRY
ISSN
2050-7488
Keyword
LITHIUM-ION BATTERIESTHERMAL-RUNAWAYCAPACITYMECHANISMIMPACTPOWERFADE

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