Cryogenic machining of elastomers: a review

Maurya, Preeti; Vijay, G S; Kamath, Chaitanya; Shivamurthy, B.

doi:10.1080/10910344.2021.1903923

Cited by 7 publications

(1 citation statement)

References 45 publications

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“…The increase in strain at fracture values at −10 °C and −20 °C compared to that at 25 °C indicates the enhanced elasticity of the F-PCEE under reduced temperatures, which is attributed to the entropy-driven elasticity of elastomers for compensating the exothermic process during stretching. [43][44][45] However, as the temperature approaches the T g of the polymeric matrix, the elastomers lose their elastic property and show a plastic behavior. Therefore, the elastomeric behavior of F-PCEE at −20 °C aligns well with its low T g of −47 °C as determined by differential scanning calorimetry (DSC) (Figure S5, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Design of Fluorinated Elastomeric Electrolyte for Solid‐State Lithium Metal Batteries Operating at Low Temperature and High Voltage

Park,

Seong,

Yuk

et al. 2024

Advanced Materials

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We demonstrate the low‐temperature operation of solid‐state lithium metal batteries (LMBs) through the development of a fluorinated and plastic‐crystal‐embedded elastomeric electrolyte (F‐PCEE). The F‐PCEE is formed via polymerization‐induced phase separation between the polymer matrix and plastic crystal phase, offering a high mechanical strain (∼300%) and ionic conductivity (∼0.23 mS cm−1) at ‐10 °C. Notably, strong phase separation between two phases leads to the selective distribution of lithium (Li) salts within the plastic crystal phase, enabling superior elasticity and high ionic conductivity at low temperatures. The F‐PCEE in a Li/LiNi0.8Co0.1Mn0.1O2 full cell maintains 74.4 and 42.5% of discharge capacity at ‐10 and ‐20 °C, respectively, compared to that at 25 °C. Furthermore, the full cell exhibits 85.3% capacity retention after 150 cycles at ‐10 °C and a high cut‐off voltage of 4.5 V, representing one of the highest cycling performances among the reported solid polymer electrolytes for low‐temperature LMBs. We attribute the prolonged cycling lifetime of F‐PCEE at ‐10 °C to the great mechanical robustness to suppress the Li‐dendrite growth and ability to form superior LiF‐rich interphases. This study establishes the design strategies of elastomeric electrolytes for developing solid‐state LMBs operating at low temperatures and high voltages.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%