High-Voltage Li Metal Batteries Enabled by Adsorption-Defluorination Mechanism

Sun, Chuangchao; Li, Ruhong; Zhu, Chunnan; Chen, Long; Weng, Suting; Liu, Chengwu; Deng, Tao; Chen, Lixin; Wang, Xuefeng; Fan, Xiulin

doi:10.1021/acsenergylett.3c01383

Cited by 9 publications

(1 citation statement)

References 55 publications

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“…During the past 5 years, much progress has been achieved in suppressing dendrite formation and prolonging the lifespan of Li metal anode, while there are only a few works on the utilization and thickness of the employed metal electrode in full cell test, which directly determines the energy density of LMB. [13,14] When employing commercial Licontained cathode like LiFePO 4 , LiCoO 2 , and NCM, ideally no extra Li source is required and Li + from the cathode for the deposition/stripping process at the anode site could be completely reversible, which is the so-called anode-free or anodeless LMB, delivering the highest energy density (Figure 1a). [15,16] However, ascribed to the high irreversibility of Li metal anode, anode-free LMB inevitably suffers from rapid capacity decay, failing to meet the commercialization requirement.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in robust and ultra‐thin Li metal anode

Luo,

Cao,

et al. 2024

Carbon Neutralization

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Li metal batteries have been widely expected to break the energy‐density limits of current Li‐ion batteries, showing impressive prospects for the next‐generation electrochemical energy storage system. Although much progress has been achieved in stabilizing the Li metal anode, the current Li electrode still lacks efficiency and safety. Moreover, a practical Li metal battery requires a thickness‐controllable Li electrode to maximally balance the energy density and stability. However, due to the stickiness and fragile nature of Li metal, manufacturing Li ingot into thin electrodes from conventional approaches has historically remained challenging, limiting the sufficient utilization of energy density in Li metal batteries. Aiming at the practical application of Li metal anode, the current issues and their initiation mechanism are comprehensively summarized from the stability and processability perspectives. Recent advances in robust and ultra‐thin Li metal anode are outlined from methodology innovation to provide an overall insight. Finally, challenges and prospective developments regarding this burgeoning field are critically discussed to afford future outlooks. With the development of advanced processing and modification technology, we are optimistic that a truly great leap will be achieved in the foreseeable future toward the industrial application of Li metal batteries.

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Section: Introductionmentioning

confidence: 99%

Recent advances in robust and ultra‐thin Li metal anode

Luo,

Cao,

et al. 2024

Carbon Neutralization

View full text Add to dashboard Cite

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Understanding and Design of Cathode–Electrolyte Interphase in High‐Voltage Lithium–Metal Batteries

Li,

He,

Jie

et al. 2024

Adv Funct Materials

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The development of lithium–metal batteries (LMBs) has emerged as a mainstream approach for achieving high‐energy‐density energy storage devices. The stability of electrochemical interfaces plays an essential role in realizing stable and long‐life LMBs. Despite extensive and comprehensive research on the lithium anode interface, there is limited focus on the cathode interface, particularly regarding high‐voltage transition metal oxide cathode materials. In this review, the challenges associated with developing stable high‐voltage cathode materials are first discussed. Characterization techniques for understanding the composition and structure of the cathode–electrolyte interphase (CEI) are then introduced. Subsequently, recent developments in electrolyte design and interface modification for constructing a stable CEI are summarized. Finally, perspectives on future research trends for understanding and developing the high‐voltage CEI are discussed. This review can offer valuable guidance for understanding and designing the high‐voltage CEI, pushing forward the development of high‐energy‐density LMBs.

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Recent Progress in Liquid Electrolytes for High‐Energy Lithium–Metal Batteries: From Molecular Engineering to Applications

Li,

Han,

Cui

et al. 2024

Adv Funct Materials

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Lithium–metal batteries (LMBs) have garnered significant interests for their promising high gravimetric energy density (Eg) ∼ 750 Wh kg−1. However, the practical application of the LMBs is plagued by the high reactivity and large volume change during charging–discharging of the lithium–metal anode (LMA), seriously deteriorating the battery safety and cycle life. Great efforts have been devoted to tailoring the electrolytes to favor the Li–metal electroplating by uniformizing the deposition morphology and by suppressing the side reactions between electrolytes and LMA. The aggressive chemistries of both the LMA and its high‐voltage counterpart give new electrolyte components more opportunities, especially designing via molecular engineering. Here, a comprehensive and in‐depth overview of the scientific challenges, fundamental mechanisms, and particularly historical strategies of designing new molecules for electrolyte components including solvents, salts, and additives. Their important roles in tuning the Li+ solvation structure, interface composition, decomposition pathways, and the resultant electrochemical performance of LMBs are also presented. Finally, novel insights and promising research directions from the practical application viewpoints are proposed for future electrolyte designs for high‐voltage LMBs.

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High-Voltage Li Metal Batteries Enabled by Adsorption-Defluorination Mechanism

Cited by 9 publications

References 55 publications

Recent advances in robust and ultra‐thin Li metal anode

Recent advances in robust and ultra‐thin Li metal anode

Understanding and Design of Cathode–Electrolyte Interphase in High‐Voltage Lithium–Metal Batteries

Recent Progress in Liquid Electrolytes for High‐Energy Lithium–Metal Batteries: From Molecular Engineering to Applications

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