Thermal stability characteristics of high-power, large-capacity, reserve thermal batteries with pure Li and Li(Si) anodes

Cho, Jang-Hyeon; Im, Chae Nam; Choi, Chi Hun; Ha, Sang-Hyeon; Yoon, Hyun-Ki; Choi, Yusong; Bae, Joongmyeon

doi:10.1016/j.electacta.2020.136612

Cited by 20 publications

(15 citation statements)

References 18 publications

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“…(K) The COMSOL thermal‐analysis model; Average temperatures of the 80th cathode components of the Li(Si)‐thermal batteries with 90–115 cal g −1 heat balance: linear (L) and logarithmic (M) scale plots. Reproduced with permission 157 . Copyright 2020, Elsevier.…”

Section: Advanced Thermal Simulation Techniques In Sslbmentioning

confidence: 99%

“…The major aim of multiphysics simulation is to simulate the most possible thermal conditions to trigger TR. According to the Bae's report, 157 they simulated the optimal discharge temperatures and heat balances of the thermal Li (Si) battery and pure lithium anode (LAN) battery after considering the heat balance between the heat source and the electrode/solid‐electrolyte components. In this work, the thermal properties of the thermal battery pack (150 V, 80 cells, 1 kWh) with Li (Si) and LAN were analyzed by COMSOL Multiphysics software (Figure 15K).…”

Section: Advanced Thermal Simulation Techniques In Sslbmentioning

confidence: 99%

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Advances in thermal‐related analysis techniques for solid‐state lithium batteries

Wang

Yang

Sun

et al. 2023

InfoMat

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Solid‐state lithium batteries (SSLBs) have been broadly accepted as a promising candidate for the next generation lithium‐ion batteries (LIBs) with high energy density, long duration, and high safety. The intrinsic non‐flammable nature and electrochemical/thermal/mechanical stability of solid electrolytes are expected to fundamentally solve the safety problems of conventional LIBs. However, thermal degradation and thermal runaway could also happen in SSLBs. For example, the large interfacial resistance between solid electrolytes and electrodes could aggravate the joule heat generation; the anisotropic thermal diffusion could trigger the uneven temperature distribution and formation of hotspots further leading to lithium dendrite growth. Considerable research efforts have been devoted to exploring solid electrolytes with outstanding performance and harmonizing interfacial incompatibility in the past decades. There have been fewer comprehensive reports investigating the thermal reaction process, thermal degradation, and thermal runaway of SSLBs. This review seeks to highlight advanced thermal‐related analysis techniques for SSLBs, by focusing particularly on multiscale and multidimensional thermal‐related characterization, thermal monitoring techniques such as sensors, thermal experimental techniques imitating the abuse operating condition, and thermal‐related advanced simulations. Insightful perspectives are proposed to bridge fundamental studies to technological relevance for better understanding and performance optimization of SSLBs.

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Section: Advanced Thermal Simulation Techniques In Sslbmentioning

confidence: 99%

Section: Advanced Thermal Simulation Techniques In Sslbmentioning

confidence: 99%

Advances in thermal‐related analysis techniques for solid‐state lithium batteries

Wang

Yang

Sun

et al. 2023

InfoMat

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“…However, it is impossible to fix a liquid lithium anode (melting point: 180 °C) in a traditional FeS 2 thermal battery with a solid-liquid-solid structure. [31] Emerging solid-state batteries are considered to be a useful framework for Li-FeS 2 batteries. FeS 2 regeneration in high-temperature solidstate batteries may help the battery achieve high reversibility.…”

Section: Introductionmentioning

confidence: 99%

Modulation of the Oxidation End‐Product Toward Polysulfides‐Free and Sustainable Lithium‐Pyrite Thermal Batteries

et al. 2023

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The FeS 2 has abundant reserves and a high specific capacity (894 mAh g −1 ), commonly used to fabricate Li-FeS 2 primary batteries, like LiM x -FeS 2 thermal batteries (working at ≈500 °C). However, Li-FeS 2 batteries struggle to function as rechargeable batteries due to serious issues such as pulverization and polysulfide shuttling. Herein, highly reversible solid-state Li-FeS 2 batteries operating at 300 °C are designed. Molten salt-based FeS 2 slurry cathodes address the notorious electrode pulverization problem by encapsulating pulverized particles in time with e − and Li + flow conductors. In addition, the solid electrolyte LLZTO tube serves as a hard separator and fast Li + channel, effectively separating the molten electrodes to construct a liquid-solid-liquid structure instead of the solid-liquid-solid structure of LiM x -FeS 2 thermal batteries. Most importantly, these high-temperature Li-FeS 2 solid-state batteries achieve FeS 2 conversion to Li 2 S and Fe at discharge and further back to FeS 2 at charge, unlike room-temperature Li-FeS 2 batteries where FeS and S act as oxidation products. Therefore, these new-type Li-FeS 2 batteries have a lower operating temperature than Li-FeS 2 thermal batteries and perform highly reversible electrochemical reactions, which can be cycled stably up to 2000 times with a high specific capacity of ≈750 mAh g −1 in the prototype batteries.

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“…The activation time and power density greatly affect the response speed of thermal batteries. Reserved thermal batteries with large capacity, high power, high thermal stability, long shelf lives, and fast activation are an attractive high-temperature battery system, which can be used as an effective power source for the actuator of guided weapons and the propulsion device of underwater and space vehicles ( Cho et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Recent Developments of Cathode Materials for Thermal Batteries

Guo

Qian

2022

Front. Chem.

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Big progress has been made in batteries based on an intercalation mechanism in the last 20 years, but limited capacity in batteries hinders their further increase in energy density. The demand for more energy intensity makes research communities turn to conversion-type batteries. Thermal batteries are a special kind of conversion-type battery, which are thermally activated primary batteries composed mainly of cathode, anode, separator (electrolyte), and heating mass. Such kinds of battery employ an internal pyrotechnic source to make the battery stack reach its operating temperature. Thermal batteries have a long history of research and usage in military fields because of their high specific capacity, high specific energy, high thermal stability, long shelf life, and fast activation. These experiences and knowledge are of vital importance for the development of conversion-type batteries. This review provides a comprehensive account of recent studies on cathode materials. The paper covers the preparation, characterization of various cathode materials, and the performance test of thermal batteries. These advances have significant implications for the development of high-performance, low-cost, and mass production conversion-type batteries in the near future.

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Thermal stability characteristics of high-power, large-capacity, reserve thermal batteries with pure Li and Li(Si) anodes

Cited by 20 publications

References 18 publications

Advances in thermal‐related analysis techniques for solid‐state lithium batteries

Advances in thermal‐related analysis techniques for solid‐state lithium batteries

Modulation of the Oxidation End‐Product Toward Polysulfides‐Free and Sustainable Lithium‐Pyrite Thermal Batteries

Recent Developments of Cathode Materials for Thermal Batteries

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