Cited by Limiting cationic mixing and lattice oxygen loss of single-crystalline Ni-rich Co-poor cathodes for high-voltage Li-ion batteries

Design High‐Entropy Core‐Shell Nickel‐Rich Cobalt‐Free Cathode Material Toward High Performance Lithium Batteries DOI

Boyang Zhao,

Xia Sun,

Hongwei Bi

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Abstract The structural instability of lithium‐based transition metal layered oxides during electrochemical cycling‐exacerbated by phenomena such as dissolution and phase transitions‐induces rapid capacity degradation, thus constraining their applicability in high‐energy‐density lithium batteries. While coating these materials can bolster stability, the employment electrochemically inactive coatings may inadvertently undermine energy storage performance, presenting a significant trade‐off. In response to this challenge, an innovative core‐shell cathode architecture is presented, wherein high entropy doped LiNi 1/6 Mn Al Ti Mo Ta O 2 serves shell nickel‐rich cobalt‐free 0.89 0.11 constitutes core, synthesized through simple two‐step co‐precipitation methodology (designated LHECNM). This high‐entropy preserves core's performance while effectively mitigating transformations ion dissolution, thereby enhancing robustness. Moreover, configuration significantly diminishes barrier for Li + diffusion, facilitating superior transport dynamics. Consequently, LHECNM demonstrates remarkable achieving discharge 201.57 mAh g −1 , commendable rate capability up 5C, impressive 92% retention over prolonged cycling. investigation elucidates promising paradigm design materials, offering profound insights advancement future technologies.

Language: Английский

Citations

Pulse Current-Induced Homogeneous Phase Nucleation for High-Performance Conversion-Type Cathodes DOI

Chuntao Ma,

Yuhao Ma, Shuai Li

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Conversion-type transition metal-based materials (MZx) are considered promising cathodes for lithium metal batteries due to their low cost, abundant availability, and high theoretical energy density. However, they suffer from rapid capacity decay caused by the transformation into two inhomogeneous phases during discharge. Herein, we use a pulse current discharge activation method (under 3C) induce homogeneous phase nucleations. As result, microsized FeS2 cathode transforms mixture of nanosized Fe Li2S, effectively mitigating volume expansion. It exhibits exceptional cycling performance, delivering specific 572.8 mAh g–1 after 800 cycles at 0.33C. Even areal 5.4 cm–2, it undergoes 180 with retention 89.3% This work highlights crucial role nucleation in achieving long life conversion-type cathodes.

Language: Английский

Citations

Dynamic Reconstruction of the Surface Lattice to Stabilize Lithium Nickel Oxide Cathodes via Molybdenum Modification DOI

Kuiming Liu, Guoyu Ding,

Zhichen Hou

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1072 - 1081

Published: Feb. 5, 2025

Language: Английский

Citations

A comprehensive understanding on the anionic redox chemistry of high-voltage cathode materials for high-energy-density lithium-ion batteries DOI

Qingyuan Li, Dong Zhou, Mihai Chu

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review systematically discusses the structure, reaction mechanisms, and challenges as well countermeasures for high-voltage Li-rich, LiCoO 2 , Ni-rich cathode materials, attributing their anion redox activity to O 2p non-bonding states.

Language: Английский

Citations

Visual Engineering Achieved with Electronegative Carbon Dots for Highly Efficient Ion Flux Regulation DOI

Wenyi Lu,

Yongshuai Liu,

Shaochong Cao

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Abstract Various modification methods for lithium‐metal battery separators have been well explored in the past decades, among which most common process is to coat modified slurries onto by blade‐coating method. However, distribution of often non‐uniform this process, while uniformity usually needs be detected electron microscope, time and cost‐consuming. To solve long‐standing technical issue, it focuses on “visualization” effect with negatively charged carbon dots under UV light, deeply investigates ion transport problem caused material modification. With unique “visual engineering” strategy, uniform separator can easily detected, further allows construction a negative shielding layer cation channels. It accelerates realizes stable Li stripping deposition avoids dendrite growth. end, symmetric batteries different electrolyte compositions, operation 1200 h achieved. In addition, polysulfide shuttles greatly suppressed, thus avoiding infamous “shuttle effect” lithium–sulfur batteries. This work provides new avenue screening well‐modified through engineering”, accelerating practical application series rechargeable

Language: Английский

Citations

In Situ Surficial Polymerization of Ultrahigh-Nickel Cathode Material for Stable Solid-State Lithium Batteries DOI

Yuqing Dai,

Zihan Hou,

Xin Yu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Ultrahigh-nickel cathode active materials (CAMs) suffer from detrimental side reactions when coupled with poly(ethylene oxide) (PEO)-based electrolytes in solid-state lithium-metal batteries (SLMBs). To circumvent this issue, here we propose a surface modification strategy for ultrahigh-nickel CAMs self-assembled nanoscale polymer coating. Without requiring additional initiators, the residual lithium compounds inherent on of are used as initiators to induce situ anionic polymerization monomer. Meanwhile, oxygen vacancies generated through coordination -C = O and ≡ N transition metal ions, which reduces diffusion barrier Li+ their vicinity. Benefiting high voltage stability, rapid transfer, elasticity coating layer, coated LiNi0.9Co0.06Mn0.04O2 exhibits capacity retention 92% after 100 cycles matched PEO-based electrolytes. The pouch cell enables stable operation 500 at 1C. In addition, measure MW recycled PEO cycling by gel permeation chromatography, is direct evidence that decomposition (cleavage ether linkages) inhibited. As vision, efficient, high-yield, simple method expected promote commercial application SLMBs.

Language: Английский

Citations

One-Step Bimetallic Doping Strategy: Achieving Structural Stabilization and Performance Enhancement of Ultrahigh Nickel Cobalt-Free Cathode Materials DOI

Yang Tang,

Rong Huang, Xin Huang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Language: Английский

Citations

Process optimization for recycling spent lithium iron phosphate batteries based on leaching kinetics and mechanism study DOI

Guodong Wen,

Shuai Yuan, Jie Liu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133263 - 133263

Published: April 1, 2025

Language: Английский

Citations

High-Entropy Approach vs. Traditional Doping Strategy for Layered Oxide Cathodes in Alkali-Metal-Ion Batteries: A Comparative Study DOI

Yanjiao Ma,

Han Du,

Siyuan Zheng

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104295 - 104295

Published: May 1, 2025

Language: Английский

Citations

Limiting cationic mixing and lattice oxygen loss of single-crystalline Ni-rich Co-poor cathodes for high-voltage Li-ion batteries DOI

Hujun Zhang,

Haifeng Yu, Ling Chen

et al.

Green Energy & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations