Unveiling the recent advances in micro-electrode materials and configurations for sodium-ion micro-batteries

Moghadami, Mina; Massoudi, Abouzar; Nangir, Mahya

doi:10.1039/d4ta02096k

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta02096k

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Unveiling the recent advances in micro-electrode materials and configurations for sodium-ion micro-batteries

Mina Moghadami,

Abouzar Massoudi,

Mahya Nangir

Abstract: The recent advances in portable and smart devices require modern microelectronics to be miniaturized, leading to the need for small, lightweight, reliable, and on-chip integrated energy storage systems like rechargeable micro-batteries (μBs).

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How Binder Nanofibration Affects the Active‐Material Microenvironment in Battery Electrodes?

Ma,

Cai,

Zhu

et al. 2024

Adv Funct Materials

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Binder morphology is a critical factor determining the electrode microstructures and properties, which fundamentally controls the charge transport and mechanical performance of the resultant battery. In this case, polytetrafluoroethylene (PTFE) binder is of great interest as it exhibits unique nanofibration capability and mechanical flexibility, which has been broadly applied for dry processing of battery electrodes. However, there is a lack of fundamental study on how binder nanofibration affects the electrochemomechanical properties of electrodes. Here, similar to the fibrous structures of the cell microenvironment, the attempt is to answer this question from the viewpoint of active‐material microenvironment (ME@AM). First, the PTFE nanofibration degree is adjusted by electrode calendering treatment and binder loading. Second, the microstructures, mechanical relaxation behavior, bending capability, and liquid–electrolyte wetting capability of the fibrous ME@AM are comparatively investigated in detail by dynamic mechanical testing. Finally, the superiority of highly fibrous ME@AM in electrochemical performance is confirmed by the C‐rate and cycling stability testing of half‐cells. This study indicates that a highly fibrous ME@AM can remarkably improve the electrochemomechanical properties of electrodes by enhanced capillary action with liquid electrolyte, good electrode flexibility, and structural stability under compression.

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How Binder Nanofibration Affects the Active‐Material Microenvironment in Battery Electrodes?

Ma,

Cai,

Zhu

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

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Unveiling the recent advances in micro-electrode materials and configurations for sodium-ion micro-batteries

Abstract: The recent advances in portable and smart devices require modern microelectronics to be miniaturized, leading to the need for small, lightweight, reliable, and on-chip integrated energy storage systems like rechargeable micro-batteries (μBs).

Cited by 1 publication

References 255 publications

How Binder Nanofibration Affects the Active‐Material Microenvironment in Battery Electrodes?

How Binder Nanofibration Affects the Active‐Material Microenvironment in Battery Electrodes?

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