High‐Energy Lithium‐Ion Batteries: Recent Progress and a Promising Future in Applications

Energy & environment materials, Journal Year: 2022, Volume and Issue: 6(5)

Published: June 8, 2022

It is of great significance to develop clean and new energy sources with high‐efficient storage technologies, due the excessive use fossil that has caused severe environmental damage. There interest in exploring advanced rechargeable lithium batteries desirable power capabilities for applications portable electronics, smart grids, electric vehicles. In practice, high‐capacity low‐cost electrode materials play an important role sustaining progresses lithium‐ion batteries. This review aims at giving account recent advances on emerging summarizing key barriers corresponding strategies practical viability these materials. Effective approaches enhance density are increase capacity output operation voltage. On major bottlenecks battery, authors come up concept integrated battery systems, which will be a promising future high‐energy improve alleviate anxiety

Language: Английский

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Challenges and Strategies towards Single‐Crystalline Ni‐Rich Layered Cathodes

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(31)

Published: July 6, 2022

Abstract The ever‐increasing energy density requirements in electric vehicles (EVs) have boosted the development of Ni‐rich layered oxide cathodes for state‐of‐the‐art lithium‐ion batteries. Nevertheless, commercialization polycrystalline (PCNCs) is hindered by severe performance degradation and safety concerns that are tightly related to its particle cracking during cycling. Single‐crystalline (SCNCs) with eliminated grain boundaries high mechanical strength recently attracted extensive attention owing their superior structural cycling stability, which present crack resistance electrochemical operation. Various articles focused on trial‐and‐error synthesis modifications SCNCs, as well comparison performances mechanisms PCNCs. However, there has been much less effort systematic analysis summary reveal key challenges, controversies, corresponding primary causes. In this review, advantages debates properties SCNCs over PCNCs summarized provide fundamental understanding SCNCs. Then current practical issues challenges comprehensively discussed from viewpoints both academia industry, proposed modification strategies underlying outlook perspectives further given facilitate commercial applications high‐performance EVs.

Language: Английский

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Mechanism of Doping with High‐Valence Elements for Developing Ni‐Rich Cathode Materials

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(34)

Published: July 16, 2023

Abstract Introducing additional elements into Ni‐rich cathodes is an essential strategy for addressing the instability of cathode material. Conventionally, this doping considers only incorporation bulk structure in terms fortifying crystal structure. However, high‐valence such as Nb 5+ , Ta and Mo 6+ are likely to be insoluble structure, resulting accumulation along interparticle boundaries. Herein, a new mechanism their effects on morphology investigated by calcining LiNiO 2 (LNO) X‐doped LNO (X = Al, Nb, Ta, Mo) at various temperatures. Operando X‐ray diffraction analysis reveals that temperature which content Li‐X‐O compounds declines higher dopants with high oxidation states, reinforcing segregation grain boundary widening calcination range. Thus, highly aligned microstructure crystallinity maintained over wide range after elements, enhancing electrochemical performance. As next‐generation dopants, can fortify not but also microstructure, maximize performance cathodes.

Language: Английский

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Recent progress on the modification of high nickel content NCM: Coating, doping, and single crystallization

Interdisciplinary materials, Journal Year: 2022, Volume and Issue: 1(3), P. 330 - 353

Published: July 1, 2022

Abstract High nickel content layered cathodes, represented by NCM (LiNi x Co y Mn z O 2 , + = 1), are now widely employed in the market of electric vehicles, owing to their high energy density. With gradual increase and capacity, issues on cycling life safety become more serious. In this review, various strategies for improving performance summarized aspects surface coating, ionic doping, single‐crystal NCM. The coating strategy was separately described according physical property species, including inert material Li ‐conductor electronic conductor mixed coating. These species help suppress interfacial oxidation electrolytes NCM, safety. elemental doping crystal lattice is then presented cation, anion, mixed‐ion which beneficial stabilize structure during charge–discharge so promote electrochemical performance. quite recent years, demonstrated be a promising pathway, dramatically reduced area grain boundary. Finally, remaining unsolved challenges future further development cathode materials outlined.

Language: Английский

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Stabilizing the Interphase in Cobalt‐Free, Ultrahigh‐Nickel Cathodes for Lithium‐Ion Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(14)

Published: Jan. 15, 2023

Abstract High‐nickel layered oxide cathodes, such as LiNi 1‐ x ‐ y Mn Co O 2 (NMC) and Al (NCA), are at the forefront for implementation in high‐energy‐density lithium‐ion batteries. The presence of cobalt both cathode chemistries, however, largely deters their application due to fiscal humanitarian issues affiliated with sourcing. Increasing Ni content drives down content, but introduces additional structural electrochemical problems attributed high‐Ni cathodes. Herein a dually modified cobalt‐free ultrahigh‐nickel 0.02B‐LiNi 0.99 Mg 0.01 (NBM) is presented 1 mol% B that exhibits high initial 1C discharge capacity 210 mA h g −1 20% retention improvement over 500 cycles when benchmarked against LiNiO (LNO) pouch full cell configurations graphite anode. Postmortem analyses reveal enhanced performance stems from reduced active lithium inventory loss localized surface reactivity NBM cathode. stabilized cathode‐electrolyte interphase subsequently reduces transition‐metal dissolution ensuing chemical crossover anode, which prevents further catalyzed parasitic reactions harmfully passivate anode surface. Altogether, this study aims highlight importance electrode characterization analysis an interphasial viewpoint push ongoing research stabilize ultrahigh‐Ni cathodes industrial feasibility.

Language: Английский

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Magnesium ion-doped layered oxide cathodes for alkali-metal ion batteries: Recent research progress and outlook

Energy storage materials, Journal Year: 2023, Volume and Issue: 62, P. 102935 - 102935

Published: Aug. 19, 2023

Language: Английский

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Low-cobalt active cathode materials for high-performance lithium-ion batteries: synthesis and performance enhancement methods

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(8), P. 3789 - 3821

Published: Jan. 1, 2023

This review describes the advancements in field of Ni-rich NCM cathodes terms manufacturing processes, material challenges, modification techniques, and future research directions, discusses correlation between synthesis electrochemical performance.

Language: Английский

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Structures, issues, and optimization strategies of Ni-rich and Co-low cathode materials for lithium-ion battery

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144051 - 144051

Published: June 13, 2023

Language: Английский

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Insights into Cation Migration and Intermixing in Advanced Cathode Materials for Lithium‐Ion Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 29, 2024

Abstract Cathode materials are the core components of lithium‐ion batteries owing to determination practical voltage and effective energy battery system. However, advanced cathodes have faced challenges related cation migration intermixing. In this review, study summarizes structural failure mechanisms due mixing cathodes, including Ni‐rich Li‐rich layered spinel, olivine, disordered rock‐salt materials. This review starts by discussing degradation caused intermixing in different focusing on electronic structure, crystal electrode structure. Furthermore, optimization strategies for inhibition rational utilization systematically encapsulated. Last but not least, remaining proposed perspectives highlighted future development cathodes. The accurate analysis using characterization, precise control material synthesis, multi‐dimensional synergistic modification will be key research areas provides a comprehensive understanding emerge as pivotal controllable factors further

Language: Английский

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Low‐Electronegativity Cationic High‐Entropy Doping to Trigger Stable Anion Redox Activity for High‐Ni Co‐Free Layered Cathodes in Li‐Ion Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(10)

Published: Jan. 5, 2024

LiNi

Language: Английский

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