High thermal stability and low impedance polypropylene separator coated with aluminum phosphate

Ma, Shuanhong; Lin, Hai; Yang, Luyi; Tong, Qingsong; Pan, Feng; Weng, Jingzheng; Zheng, Shaojun

doi:10.1016/j.electacta.2019.07.039

Cited by 27 publications

(8 citation statements)

References 25 publications

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“…[67] They may deform and shrink over the above temperature, leading to battery short-circuiting. [68][69][70][71] As a consequence, [54] Copyright 2019, Springer. c) The structure of 1D CoTe-2D MXene.…”

Section: Thermal Stable Materials To Tolerate Heat Accumulationmentioning

confidence: 99%

Lithium‐Sulfur Batteries at Extreme Temperatures: Challenges, Strategies and Prospects

Xia

Luo

et al. 2023

Energy & Environ Materials

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High‐energy‐density‐batteries working at a wide‐temperature range are urgently required in many performance‐critical areas. Lithium‐sulfur batteries (LSB) are promising high‐energy‐density batteries that have the potential to maintain high performance at extreme temperatures. However, some problems like severe shuttling and safety issues at high temperatures or sluggish reaction kinetics and charge‐transfer process at low temperatures decrease the performance and hinder their practical uses in extreme temperature conditions. Therefore, broadening the working temperature of LSB with stable electrochemical performance becomes a crucial topic. In this paper, the key stumbling blocks for high and low‐temperature LSB are comprehensively discussed. The solutions from the aspects of electrolyte and electrode materials are discussed to solve the aggravating shuttle effect and thermal safety issues under high temperature and the sluggish reaction kinetics under low temperature. Moreover, some specific promising solutions to extend the operating temperature range of LSB are also proposed and highlighted, which provide potential research directions on the practical LSB application in future.

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Section: Thermal Stable Materials To Tolerate Heat Accumulationmentioning

confidence: 99%

Lithium‐Sulfur Batteries at Extreme Temperatures: Challenges, Strategies and Prospects

Xia

Luo

et al. 2023

Energy & Environ Materials

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“…Polyolefin‐based separators have been widely used lithium‐sulfur batteries. However, due to the low melting points of PE and PP, the polyolefin separators suffer from large thermal shrinkage at high temperatures . The thermal shrinkage rate of PP separator is tested to be 33.3% at 150°C for 2 hours, which will further increase the risk of internal short‐circuit, causing the battery thermal runaway or even explosion.…”

Section: Separators With High Thermal Tolerancementioning

confidence: 99%

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Wei

Ren

Sokolowski

et al. 2020

InfoMat

245

147

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The lithium-sulfur battery is considered one of the most promising candidates for portable energy storage devices due to its low cost and high energy density.However, many critical issues, including polysulfide shuttling, self-discharge, lithium dendritic growth, and thermal hazards need to be addressed before the commercialization of lithium-sulfur batteries. To this end, tremendous efforts have been made to explore battery configurations and components, such as electrodes, electrolytes, and separators, among which the separator plays an especially critical role in addressing aforementioned issues. Thus, this review analyzes the mechanisms and interactions of these critical issues and summarizes both the function of separators and recent progress made towards remedying such issues. Additionally, promising directions for the development of separators in lithium-sulfur batteries are proposed. K E Y W O R D Slithium dendrite, lithium-sulfur batteries, self-discharge, separator, shuttle effect, thermal hazardsThe first two authors contributed equally to this work.

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“…Since AlPO 4 present in the coating layer was able to form a high electrolyte absorption and strong bond with PP, the membrane could have high ionic conductivity, which could lead to the thermal strengthening of the battery. (Ma et al 2019) Dongwei Ma et al, studied a hydrophilicity of polysulfone modi ed by applying spray coating and selective swelling process technology. This made the membrane exible and led to the control of porosity and pore size control.…”

Section: Introductionmentioning

confidence: 99%

Improvement of stability for cellulose polymer by calcium oxide for application to porous materials

Lee

Kang

2022

Cellulose

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In this study, calcium oxide (CaO) was used as an additive to form pores in a cellulose acetate (CA) membrane and at the same time improve the thermal stability of the cellulose acetate membrane. When the CA/CaO membrane was exposed to water pressure, the solvent was removed from the CA matrix area plasticized by the CaO particle size and water channels were formed. In addition, the high melting point of CaO and its bonding with the carbonyl group of CA caused a crosslinking effect.We succeeded in membrane synthesis with a high porosity of 73.1% and ux data of 95.25 L/m 2 h at 8 bar, which was enhanced thermally with an increased decomposition temperature of 50°C on thermogravimetric analysis (TGA). The pores generated in the cellulose acetate lm were con rmed using a scanning electron microscope machine (SEM) and mercury porosimeter. Thermal stability and interactions in materials were measured using TGA and Fourier transform infrared (FT-IR).

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High thermal stability and low impedance polypropylene separator coated with aluminum phosphate

Cited by 27 publications

References 25 publications

Lithium‐Sulfur Batteries at Extreme Temperatures: Challenges, Strategies and Prospects

Lithium‐Sulfur Batteries at Extreme Temperatures: Challenges, Strategies and Prospects

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Improvement of stability for cellulose polymer by calcium oxide for application to porous materials

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