Composite separators for internal thermal management in rechargeable lithium batteries: A review

Thakur, Amrit Kumar; Kumar, Anuj; Park, Hyeona; Kim, Hyerim; Ahmed, Mohammad Shamsuddin; Saleque, Ahmed Mortuza; Vikram, Muthuraman Ponrajan; Saidur, R.; Ma, Yanbao; Hwang, Jang-Yeon

doi:10.1016/j.est.2023.108873

Cited by 4 publications

(1 citation statement)

References 92 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to their robust adhesive strength and superior stability, covalent bonds are extensively used across various domains, such as surface modifications, energy storage, and catalysis, thanks to their dependable binding forces [34][35][36]. X Song [37] used chemical self-assembly to form a thin MnO 2 layer on a conventional PE membrane.…”

Section: Introductionmentioning

confidence: 99%

Functionalized γ-Boehmite Covalent Grafting Modified Polyethylene for Lithium-Ion Battery Separator

Man,

Nan,

et al. 2024

Materials

View full text Add to dashboard Cite

In the field of lithium-ion batteries, the challenges posed by the low melting point and inadequate wettability of conventional polyolefin separators have increased the focus on ceramic-coated separators. This study introduces a highly efficient and stable boehmite/polydopamine/polyethylene (AlOOH-PDA-PE) separator. It is crafted by covalently attaching functionalized nanosized boehmite (γ-AlOOH) whiskers onto polyethylene (PE) surfaces. The presence of a covalent bond increases the stability at the interface, while amino groups on the surface of the separator enhance the infiltration of the electrolyte and facilitate the diffusion of lithium ions. The PE-PDA-AlOOH separator, when used in lithium-ion batteries, achieves a discharge capacity of 126 mAh g−1 at 5 C and retains 97.1% capacity after 400 cycles, indicating superior cycling stability due to its covalently bonded ceramic surface. Thus, covalent interface modification is a promising strategy to prevent delamination of ceramic coatings in separators.

show abstract