Practical Application of All‐Solid‐State Lithium Batteries Based on High‐Voltage Cathodes: Challenges and Progress

Chen, Xilong; Li, Xiangjie; Luo, Lan; He, Shengnan; Chen, Jian; Liu, Yongfeng; Pan, Hongge; Song, Yun

doi:10.1002/aenm.202301230

Cited by 32 publications

(2 citation statements)

References 126 publications

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“…This can help to solve the problem of the poor cycling stability of NMC811 cathode material in sulfide-based lithium batteries. On the other hand, compared with NCM, LFP has a lower operating voltage and better structural stability and thus shows a higher capacity retention rate in all-solid-state batteries [67].…”

Section: Safety Of Power Batteriesmentioning

confidence: 99%

Lithium Iron Phosphate and Layered Transition Metal Oxide Cathode for Power Batteries: Attenuation Mechanisms and Modification Strategies

Zhang,

Li,

et al. 2023

Materials

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In the past decade, in the context of the carbon peaking and carbon neutrality era, the rapid development of new energy vehicles has led to higher requirements for the performance of strike forces such as battery cycle life, energy density, and cost. Lithium-ion batteries have gradually become mainstream in electric vehicle power batteries due to their excellent energy density, rate performance, and cycle life. At present, the most widely used cathode materials for power batteries are lithium iron phosphate (LFP) and LixNiyMnzCo1−y−zO2 cathodes (NCM). However, these materials exhibit bottlenecks that limit the improvement and promotion of power battery performance. In this review, the performance characteristics, cycle life attenuation mechanism (including structural damage, gas generation, and active lithium loss, etc.), and improvement methods (including surface coating and element-doping modification) of LFP and NCM batteries are reviewed. Finally, the development prospects of this field are proposed.

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Section: Safety Of Power Batteriesmentioning

confidence: 99%

Lithium Iron Phosphate and Layered Transition Metal Oxide Cathode for Power Batteries: Attenuation Mechanisms and Modification Strategies

Zhang,

Li,

et al. 2023

Materials

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“…Inhibiting the conversion of a portion of DOL monomers into solid electrolytes will improve ionic conductivity . However, liquid DOL electrolytes show poor oxidative stability − and undergo severe decomposition when in contact with cathode materials (such as LiCoO 2 ) under high-voltage conditions (>4.2 V), leading to rapid degradation of the battery performance.…”

Section: Introductionmentioning

confidence: 99%

An Intelligent “Solid–Liquid” Hybrid Electrolyte for High-Voltage and Dendrite-Free Lithium Metal Batteries

Wu,

Bai,

Dong

et al. 2024

ACS Appl. Energy Mater.

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In situ polymerized electrolytes significantly enhance the interfacial stability of lithium metal batteries (LMBs). Typically, in situ polymerized 1,3dioxolane (PDOL) shows good compatibility with Li metal yet still suffers from low room temperature (RT) ionic conductivity and a narrow electrochemical stability window (ESW). Commercial zeolite molecular sieves are widely used in traditional industries and can also inhibit the DOL monomer polymerization. Therefore, a unique solid−liquid hybrid electrolyte (PDOL-Z) is designed by coating zeolite particles on the cathode side of the PP separator, which greatly improves the Li-ion transport capacity and efficiency. The RT ionic conductivity is already close to that of the liquid electrolyte (9.45 × 10 −4 S cm −1 ), and the transference number (t Li+ ) reaches an impressive 0.95. Desolvation occurs when the liquid electrolyte passes through the nanopore channels, which greatly reduces the oxidative decomposition of the solvent molecules on the high-voltage cathode side. Consequently, the ESW of the PDOL-Z is improved to 4.67 V. Additionally, the Li anode side consists of an in situ polymerized electrolyte with sufficient mechanical strength, which effectively prevents the formation of lithium dendrites. Owing to the aforementioned advantages, the Li/PDOL-Z/LiCoO 2 battery demonstrates outstanding long-cycle stability at 4.3 V, with 80% capacity retention after 400 cycles. This research presents a novel design for the practical implementation of high-voltage and dendrite-free LMBs.

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High Performance All‐Solid‐State Lithium Batteries: Interface Regulation Mechanism

Luo,

Guan,

et al. 2024

Adv Funct Materials

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All‐solid‐state lithium batteries (ASSLBs) can overcome many problems in cathode and lithium anode, and it is a very promising safe secondary battery. However, unstable interface problems between electrolyte and electrode and within the electrolyte still restrict its commercial development. Herein, the interface problems are first revealed in ASSLBs and highlight the need to deeply explore the intrinsic failure mechanisms to solve these problems. Subsequently, the three failure mechanisms of ASSLBs: chemical, electrical, and electrochemical failure are broken down, and focus on the impact of the space charge layer problem on the cathode‐electrolyte interface. The effect of the anode physical contact problem on the anode‐electrolyte interface is discussed. Then, recent advances in ASSLBs, cathode and anode interface optimization strategies, and their corresponding electrochemical properties are discussed. Finally, the interface challenges faced by ASSLBs and feasible interface modification strategies are summarized, which provide references for subsequent studies and insights into the design of interface structures for the new generation of high‐performance ASSLBs.

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Practical Application of All‐Solid‐State Lithium Batteries Based on High‐Voltage Cathodes: Challenges and Progress

Cited by 32 publications

References 126 publications

Lithium Iron Phosphate and Layered Transition Metal Oxide Cathode for Power Batteries: Attenuation Mechanisms and Modification Strategies

Lithium Iron Phosphate and Layered Transition Metal Oxide Cathode for Power Batteries: Attenuation Mechanisms and Modification Strategies

An Intelligent “Solid–Liquid” Hybrid Electrolyte for High-Voltage and Dendrite-Free Lithium Metal Batteries

High Performance All‐Solid‐State Lithium Batteries: Interface Regulation Mechanism

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