Stabilization of NCM811 cathode interface through macromolecular compound protective film formed by 2,5-bis(2,2,2-trifluoroethoxy)-benzoic acid additive in lithium metal batteries

Hou, Yixin; Song, Daiheng; Zhang, Peiyao; Zhang, Bowen; Dai, Ding; Tan, Huifeng

doi:10.1039/d4ra00737a

RSC Adv.

2024

DOI: 10.1039/d4ra00737a

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Stabilization of NCM811 cathode interface through macromolecular compound protective film formed by 2,5-bis(2,2,2-trifluoroethoxy)-benzoic acid additive in lithium metal batteries

Yixin Hou,

Daiheng Song,

Peiyao Zhang

et al.

Abstract: 2,5-Bis(2,2,2-trifluoroethoxy)-benzoic acid forms a protective film of poly(trifluoroethyl acrylate), leading to improved capacity retention.

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In Situ Interphase Engineering for beyond Lithium-Ion Battery Technologies

Ling,

Karuppiah,

Misnon

et al. 2024

Energy Fuels

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The pressing need to circumvent the negative impact of human activities on the environment has escalated the demand for electrochemical energy storage devices with an ever-growing energy density. Among the technologies, metal−sulfur and metal− air batteries appear to be promising owing to (i) less dependence on rare metals such as electrode materials, (ii) low carbon emission, and (iii) energy density on par with that of combustion engines. Nevertheless, the cycling stability of metal−air batteries is yet inferior due to parasitic reactions at both the cathode and anode interphases. Herein, the interphase modification and engineering beyond lithium-ion technologies were discussed, with a focus on in situ approaches. In situ interphase engineering could be facilitated through additives with no extra coating/deposition step, where the interphases formed are mostly thermodynamically stable. The research gaps on cathode−electrolyte interphases (CEI) for the sulfur cathode and air cathode are identified, highlighting the future research directions to achieve a balanced performance between the cathode and the metal anode.

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In Situ Interphase Engineering for beyond Lithium-Ion Battery Technologies

Ling,

Karuppiah,

Misnon

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

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Stabilization of NCM811 cathode interface through macromolecular compound protective film formed by 2,5-bis(2,2,2-trifluoroethoxy)-benzoic acid additive in lithium metal batteries

Abstract: 2,5-Bis(2,2,2-trifluoroethoxy)-benzoic acid forms a protective film of poly(trifluoroethyl acrylate), leading to improved capacity retention.

Cited by 1 publication

References 48 publications

In Situ Interphase Engineering for beyond Lithium-Ion Battery Technologies

In Situ Interphase Engineering for beyond Lithium-Ion Battery Technologies

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