Experimental Study on Specific Heat Capacity of Lithium Thionyl Chloride Batteries by a Precise Measurement Method

Yu, Guangfeng; Zhang, Xingjuan; Wang, Chao; Zhang, Wenwei; Yang, Chen

doi:10.1149/2.148306jes

Cited by 20 publications

(3 citation statements)

References 23 publications

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“…While the solubility of LiCl particles is poor. 28,29 The carbon cathode surface of the battery without catalysts contains a large amount of Cl element, indicating that there is a large amount of LiCl in the products. Conversely, the battery with MnTAP/CNTs has less C and more Cl, indicating that the LiCl particles and the reaction products on the carbon surface are less.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Nucleation of LiCl during Lithium Battery Discharging with Carbon Nanotubes Supported Nitrogen-Rich Manganese Phthalocyanine Catalysts

Zhu

Liu

et al. 2020

J. Electrochem. Soc.

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Large-size LiCl particles deposited on the carbon cathode of lithium thionyl chloride battery during discharge are mainly limited by the sluggish kinetics, decreasing the voltage platform and service life. In this work, the carbon nanotubes supported nano-sized nitrogen-rich manganese phthalocyanine composites (MnTAP/CNTs) were prepared by in situ solid phase synthesis as catalysts. The effect of reaction kinetics of the battery with/without catalysts on nucleation process of LiCl particles is investigated. After discharge, the surface of the carbon cathode with MnTAP/CNTs displays LiCl particles approximately 200 nm, which is only a fifth of the size without catalysts. Moreover, a large number of nano LiCl particles appear inside compared to the catalyst free. The fast reaction kinetics of SOCl 2 with MnTAP/CNTs is favorable for the nucleation of LiCl particles. Meanwhile, the electrolyte resistance, the surface film resistance and the charge transfer resistance of the battery are reduced to approximately 57%, and the discharge time and voltage platform are 15.6 min and 0.2 V higher than that without catalysts.

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Section: Resultsmentioning

confidence: 99%

Enhanced Nucleation of LiCl during Lithium Battery Discharging with Carbon Nanotubes Supported Nitrogen-Rich Manganese Phthalocyanine Catalysts

Zhu

Liu

et al. 2020

J. Electrochem. Soc.

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“…The uncertainty of the specific heat capacity c p is derived from a previous calorimeter measurement study. 2 Discrete heat generation computation.-From the generally accepted reaction equation of lithium thionyl chloride batteries 4Li + 2SOCl 2 → 4LiCl ↓ +S + SO 2 [12] it can be seen that the phase and thermal properties of the electrolyte system change during battery discharge. 1 Furthermore, the temperature and heat generation vary during the battery discharge process.…”

Section: Thermal Modelmentioning

confidence: 99%

“…However, the application of Li/SOCl 2 batteries is limited by safety incidents such as fire and explosions. 1,2 A recently reported safety incident in January 2013 was the grounding of a Boeing 787 Dreamliner, which was attributed to a fire started by the short circuiting and thermal runway of lithium batteries. 3,4 Thermal management is one of the most important issues in battery design and applications.…”

mentioning

confidence: 99%

Convective Dimensionless Method for Measurement of Heat Generation in a Lithium Thionyl Chloride Battery

Zhang

Wang

et al. 2013

J. Electrochem. Soc.

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A convenient convective type dimensionless lumped-capacitance (DLC) method for battery heat generation measurement is proposed. The effective heat transfer coefficient and heat generation can be obtained simultaneously, and no prior calibration of the equipment is needed. The new dimensionless method is verified by reference sample, and the experimental results agree with the theoretical line. The heat generated by a lithium thionyl chloride (Li/SOCl 2 ) battery is measured at the ambient temperature range of 38 • C to 50 • C. Results reveal that the heat generation is not influenced by ambient temperature at a small discharge current, and the heat generation increases at higher ambient temperature under a higher discharge current condition. The heat generation is approximately proportional to the discharge current in the range of 1.0 A to 5.0 A. The heat generation measurement method can be extended to obtain the heat generated by other types of battery.With their high energy density and high power density, lithium thionyl chloride (Li/SOCl 2 ) batteries are used in navigation equipment and spaceflight applications. However, the application of Li/SOCl 2 batteries is limited by safety incidents such as fire and explosions. 1,2 A recently reported safety incident in January 2013 was the grounding of a Boeing 787 Dreamliner, which was attributed to a fire started by the short circuiting and thermal runway of lithium batteries. 3,4 Thermal management is one of the most important issues in battery design and applications. The heat generated by electrochemical reactions must dissipate outside the battery to prevent thermal runway.The heat generation rate is an important thermal characteristic for battery design. Heat-generating sources are described in three fields of study: electricity, electrochemistry and thermodynamics. The electrical explanation shows that heat generation is the difference between the power in open-circuit voltage and the payload power. 5 The electrochemical approach reveals three types of heat generation sources: ohmic Joule heat, active polarization heat and reaction entropy heat. 6-8 Thermodynamic models vary from a zero-dimensional lumped-capacitance model to a three-dimensional thermal model. [7][8][9][10][11][12][13][14] Heat generation may be measured according to three means of heat transfer: conduction, convection and radiation. 15 Pesaran et al. 16 introduced a heat conduction type calorimeter to obtain heat generation data from battery modules. The battery sample was surrounded by an isothermal bath. The thermal gradient between the sample and the bath was compensated by calibration heaters. Al-Hallaj et al. 17 applied the lumped-capacitance thermal model, including conductive and convective experimental methods, to measure heat generation. First, the battery was fastened inside the cavity of an insulator; therefore, heat conduction was the main means of heat transfer, and convection and radiation were negligible. 8,18 Then, the battery was not insulated inside the calorimeter, and nat...

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Electrochemical Energy Storage: Current and Emerging Technologies

Loupe

Doan

Gurau

et al. 2017

Handbook of Industrial Chemistry and Biotechnology

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Experimental Study on Specific Heat Capacity of Lithium Thionyl Chloride Batteries by a Precise Measurement Method

Cited by 20 publications

References 23 publications

Enhanced Nucleation of LiCl during Lithium Battery Discharging with Carbon Nanotubes Supported Nitrogen-Rich Manganese Phthalocyanine Catalysts

Enhanced Nucleation of LiCl during Lithium Battery Discharging with Carbon Nanotubes Supported Nitrogen-Rich Manganese Phthalocyanine Catalysts

Convective Dimensionless Method for Measurement of Heat Generation in a Lithium Thionyl Chloride Battery

Electrochemical Energy Storage: Current and Emerging Technologies

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