Opportunities and Challenges of Layered Lithium-Rich Manganese-Based Cathode Materials for High Energy Density Lithium-Ion Batteries

Kou, Pengzu; Zhang, Zhigui; Wang, Zhiyuan; Zheng, Runguo; Liu, Yanguo; Lv, Fei; Xu, Ning

doi:10.1021/acs.energyfuels.3c02447

Cited by 10 publications

(2 citation statements)

References 177 publications

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“…Surface coatings can adequately protect the electrode materials from electrolyte erosion, and impede lattice oxygen release and phase transitions, so surface coatings are one of the most widely studied methods for LRMO modification [ 65 ]. Coating materials should meet the following requirements: (i) high stability of physical and chemical properties; (ii) resistance against electrolyte corrosion; and (iii) high ionic conductivity.…”

Section: Modification Strategiesmentioning

confidence: 99%

Modification Strategies of High-Energy Li-Rich Mn-Based Cathodes for Li-Ion Batteries: A Review

Xi,

Sun,

et al. 2024

Molecules

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Li-rich manganese-based oxide (LRMO) cathode materials are considered to be one of the most promising candidates for next-generation lithium-ion batteries (LIBs) because of their high specific capacity (250 mAh g−1) and low cost. However, the inevitable irreversible structural transformation during cycling leads to large irreversible capacity loss, poor rate performance, energy decay, voltage decay, etc. Based on the recent research into LRMO for LIBs, this review highlights the research progress of LRMO in terms of crystal structure, charging/discharging mechanism investigations, and the prospects of the solution of current key problems. Meanwhile, this review summarizes the specific modification strategies and their merits and demerits, i.e., surface coating, elemental doping, micro/nano structural design, introduction of high entropy, etc. Further, the future development trend and business prospect of LRMO are presented and discussed, which may inspire researchers to create more opportunities and new ideas for the future development of LRMO for LIBs with high energy density and an extended lifespan.

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Section: Modification Strategiesmentioning

confidence: 99%

Modification Strategies of High-Energy Li-Rich Mn-Based Cathodes for Li-Ion Batteries: A Review

Xi,

Sun,

et al. 2024

Molecules

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“…Nevertheless, LRMO-LMBs are plagued by poor cycle life and safety, which is highly associated with a series of problems of the Li metal anode and LRMO cathode. LRMO is faced with low initial Coulombic efficiency (CE), accelerated capacity degradation, and limited rate capability, which primarily stem from severe electrolyte decomposition, irreversible oxygen release, constant transition metal ion dissolution, and structural deterioration. − Meanwhile, the inherent instability of Li metal results in constant electrolyte consumption, dendrite growth, and safety concerns . To tackle the concerns, various strategies such as electrolyte engineering, structural optimization, and surface treatment have been developed. − In particular, electrolyte engineering represents a simple and efficient strategy.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Lithium-Rich Cathode in Ester- and Ether-Based Localized High-Concentration Electrolytes

Guo,

Li,

Jie

et al. 2024

Energy Fuels

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Lithium-rich manganese oxide (LRMO)-based lithium metal batteries (LRMO-LMBs) are prospective options for future electrochemical storage systems. The performance of the LRMO-LMBs is significantly influenced by the electrolyte. The comprehension of the correlation between electrolyte formulation and electrode stability is crucial in guiding the design of advanced electrolytes for enhancing cell performance. Herein, we systematically study the interfacial behavior of localized high-concentration electrolytes (LHCEs) and their effect on cathode stability in the Li||LRMO system, selecting typical LHCEs using 1,2-dimethoxyethane (DME) and dimethyl carbonate (DMC) solvents. On the LRMO surface, DME-LHCE tends to undergo uncontrollable oxidation at 4.8 V, which leads to severe structural degradation of LRMO. Moreover, it causes increased dissolution of transition metal ions that subsequently deposit on the Li metal anode, thereby accelerating anode failure. Conversely, DMC-LHCE forms more stable electrode/electrolyte interphases, which effectively protect both the cathode and anode. Consequently, the Li||LRMO cell using DMC-LHCE shows excellent cycling performance, maintaining 96.6% capacity retention over 100 cycles at 0.5 C. This study offers insights into the compatibility between LHCEs and LRMO, facilitating electrolyte design for LRMO-LMBs.

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Modification of Lithium‐Rich Manganese Oxide Materials: Coating, Doping and Single Crystallization

Li,

Zhang,

Liang

et al. 2024

Batteries & Supercaps

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The increasing demand for portable electronics, electric vehicles and energy storage devices has spurred enormous research efforts to develop high‐energy‐density advanced lithium‐ion batteries (LIBs). Lithium‐rich manganese oxide (LRMO) is considered as one of the most promising cathode materials because of its high specific discharge capacity (>250 mAh g⁻¹), low cost, and environmental friendliness, all of which are expected to propel the commercialization of lithium‐ion batteries. However, practical applications of LRMO are still limited by low coulombic efficiency, significant capacity and voltage decay, slow reaction kinetics, and poor rate performance. This review focus on recent advancements in the modification methods of LRMO materials, systematically summarizing surface coating with different physical properties (e.g., oxides, metal phosphates, metal fluorides, carbon, conductive polymers, lithium compound coatings, etc.), ion doping with different doping sites (Li sites, TM sites, O sites, etc.), and single crystal structures. Finally, the current states and issues, key challenges of the modification of LRMO are discussed, and the perspectives on the future development trend base on the viewpoint of the commercialization of LRMO are also provided.

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Opportunities and Challenges of Layered Lithium-Rich Manganese-Based Cathode Materials for High Energy Density Lithium-Ion Batteries

Cited by 10 publications

References 177 publications

Modification Strategies of High-Energy Li-Rich Mn-Based Cathodes for Li-Ion Batteries: A Review

Modification Strategies of High-Energy Li-Rich Mn-Based Cathodes for Li-Ion Batteries: A Review

Comparative Study of Lithium-Rich Cathode in Ester- and Ether-Based Localized High-Concentration Electrolytes

Modification of Lithium‐Rich Manganese Oxide Materials: Coating, Doping and Single Crystallization

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