Rechargeable alkali metal–chlorine batteries: advances, challenges, and future perspectives

Xie, Zehui; Sun, Lidong; Sajid, Muhammad; Feng, Yuancheng; Lv, Zhenshan; Chen, Wei

doi:10.1039/d4cs00202d

Chem. Soc. Rev.

2024

DOI: 10.1039/d4cs00202d

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Rechargeable alkali metal–chlorine batteries: advances, challenges, and future perspectives

Zehui Xie,

Lidong Sun,

Muhammad Sajid

et al.

Abstract: This review summarized the recent advances of the alkali/alkaline-earth metal–Cl2 (AM–Cl2) batteries, which have revitalized the potential of SOCl2 primary batteries and become a promising technology beyond current lithium-ion batteries.

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Cited by 4 publications

References 166 publications

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Decoupling the Failure Mechanism of Li‐Rich Layered Oxide Cathode During High‐Temperature Storage in Pouch‐Type Full‐Cell: A Practical Concern on Anionic Redox Reaction

Zhang,

et al. 2024

Advanced Energy Materials

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In addressing the global climate crisis, the energy storage performance of Li‐ion batteries (LIBs) under extreme conditions, particularly for high‐energy‐density Li‐rich layered oxide (LRLO) cathode, is of the essence. Despite numerous researches into the mechanisms and optimization of LRLO cathodes under ideal moderate environment, there is a dearth of case studies on their practical/harsh working environments (e.g., pouch‐type full‐cell, high‐temperature storage), which is a critical aspect for the safety and commercial application. In this study, using pouch‐type full‐cells as prototype investigation target, the study finds the cell assembled with LRLO cathode present severer voltage decay than typical NCM layered cathode after high‐temperature storage. Further decoupling elucidates the primary failure mechanism is the over‐activation of lattice oxidized oxygen (aggravate by high‐temperature storage) and subsequent escape of oxidized oxygen species (On−), which disrupts transition metal (TM) coordination and exacerbates electrolyte decomposition, leading to severe TM dissolution, interfacial film reconstruction, and harmful shuttle effects. These chain behaviors upon high‐temperature storage significantly influence the stability of both electrodes, causing substantial voltage decay and lithium loss, which accelerates full‐cell failure. Although the anionic redox reaction can bring additional energy, but the escape of metastable On− species would introduce new concerns in practical cell working conditions.

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Decoupling the Failure Mechanism of Li‐Rich Layered Oxide Cathode During High‐Temperature Storage in Pouch‐Type Full‐Cell: A Practical Concern on Anionic Redox Reaction

Zhang,

et al. 2024

Advanced Energy Materials

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New Redox Chemistries of Halogens in Aqueous Batteries

Chen

2024

ChemSusChem

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Halogen‐based redox‐active materials represent an important class of materials in aqueous electrochemistry. The existence of versatile halogen species and their rich bonding coordination create great flexibility in designing new redox couples. Novel redox reaction mechanisms and electrochemical reversibility can be unlocked in specifically configurated electrolyte environments and electrodes. In this review, the halogen‐based redox couples and their appealing redox chemistries in aqueous batteries, including redox flow batteries and traditional static batteries, that have been studied in recent years are discussed. New aqueous electrochemistry provides hope to outperform the state‐of‐the‐art materials and systems that are facing resources and performance limitation, and to enrich the existing battery chemistries.

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Porous Hollow Carbon Alkali-Activated Nanoonions As a Conductive Additive for High-Rate Lithium Primary Batteries

Qin,

Liu,

et al. 2024

ACS Appl. Energy Mater.

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Rechargeable alkali metal–chlorine batteries: advances, challenges, and future perspectives

Abstract: This review summarized the recent advances of the alkali/alkaline-earth metal–Cl2 (AM–Cl2) batteries, which have revitalized the potential of SOCl2 primary batteries and become a promising technology beyond current lithium-ion batteries.

Cited by 4 publications

References 166 publications

Decoupling the Failure Mechanism of Li‐Rich Layered Oxide Cathode During High‐Temperature Storage in Pouch‐Type Full‐Cell: A Practical Concern on Anionic Redox Reaction

Decoupling the Failure Mechanism of Li‐Rich Layered Oxide Cathode During High‐Temperature Storage in Pouch‐Type Full‐Cell: A Practical Concern on Anionic Redox Reaction

New Redox Chemistries of Halogens in Aqueous Batteries

Porous Hollow Carbon Alkali-Activated Nanoonions As a Conductive Additive for High-Rate Lithium Primary Batteries

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