Controllable Interface Engineering for the Preparation of High Rate Silicon Anode

Advanced Functional Materials, Год журнала: 2024, Номер 34(40)

Опубликована: Апрель 19, 2024

Abstract Silicon (Si) is considered to be the promising candidate anode for next generation of high‐energy‐density batteries. However, poor initial coulombic efficiency (ICE) and rate performance severely hinder its commercial development. Here, fully exploits 2D structure photovoltaic silicon waste (PV‐WSi), combining with advantage controllable depositing layers offered by fluidized bed atomic layer deposition (FBALD), simultaneously achieve high ICE highrate Si‐based anodes. The characteristic Li + embedding vertically into plane direction sheet‐like PV‐WSi helps shorten diffusion distance, alleviating pulverization problem caused volume expansion. FBALD utilized controllably deposit 2 O (≈1 nm) TiO (≈4 compensate loss sources, further suppressing expansion Si isolating side reactions between electrolyte. prepared Si@Li O@TiO demonstrates ultrahigh (90.9%) outstanding (>900 mAh g −1 at a 20 A ). Full cells LiFePO 4 cathode deliver stable capacity 100 after 300 cycles 0.5 C. This work provides new ideas development ICE, high‐rate anodes based on low‐cost waste.

Язык: Английский

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Capacitance deionization pre-lithiation strategy enables upgrading of spent anode graphite via defect engineering

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163013 - 163013

Опубликована: Апрель 1, 2025

Язык: Английский

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Cation doping for enhanced layer spacing and electrochemical performance in Li-rich Mn-based lithium-ion cathode materials

Journal of Electroanalytical Chemistry, Год журнала: 2024, Номер 967, С. 118453 - 118453

Опубликована: Июнь 18, 2024

Язык: Английский

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High voltage Li-rich Mn-based cathode modified by silica-coated silver nanowires for next-generation high energy density lithium-ion batteries

Electrochimica Acta, Год журнала: 2025, Номер unknown, С. 145728 - 145728

Опубликована: Янв. 1, 2025

Язык: Английский

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La-doped single-crystal Li-rich materials as high-capacity cathode materials for lithium-ion batteries

Ionics, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

Язык: Английский

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Modification of Lithium-Rich Layered Material Li1.5Ni0.17Co0.16Mn0.67O2.5 Coated with Solid Electrolyte (Li2ZrO3)

Crystals, Год журнала: 2025, Номер 15(3), С. 262 - 262

Опубликована: Март 11, 2025

With the rising popularity of electric vehicles and widespread deployment energy storage power stations. The demand for high-energy-density lithium-ion batteries is increasing day by day. Lithium-rich layered materials are among most promising candidates cathode next-generation due to their high density, cost-effectiveness, advantages in safety environmental protection. However, occurrence side reactions between lithium-rich electrolytes has led poor performance later stages, posing challenges commercial viability. In this study, we enhance electrochemical applying varying amounts solid electrolyte Li2ZrO3 as a coating on surfaces. By precipitating ZrO2 onto surface precursor, successfully sinter both material coated simultaneously, thereby reducing processing costs. experimental results show that more excellent performance, specifically, when amount 1%, compared with uncoated sample, first Coulombic efficiency improved from 56.9% 63%, after 500 charge/discharge cycles, sample still capacity retention rate than 60%; Additionally, significantly improves material, at 5 C, specific discharge 102.2 mAh·g−1 137.3 mAh·g−1. reaction mechanism was investigated cyclic voltammetry AC impedance test, showed appropriate can effectively reduce electrolyte, improve transport lithium ions then overall material.

Язык: Английский

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Toward High‐Energy‐Density Initial‐Anode‐Free Lithium‐Metal Batteries via Ultra‐Thin Protective Ion‐Transport‐Promoting Interface Modification and Surface Prelithiation

Small, Год журнала: 2024, Номер unknown

Опубликована: Сен. 3, 2024

Anode-free lithium-metal batteries (AFLMBs) are desirable candidates for achieving high-energy-density batteries, while severe active Li

Язык: Английский

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Nanocatalysis in Cathode Pre-lithiation for Lithium-ion Battery: Progress and Challenges

Nanoscale, Год журнала: 2024, Номер 16(46), С. 21294 - 21308

Опубликована: Янв. 1, 2024

This review focuses on nanocatalysis in cathode pre-lithiation, summarizes recent progress versatile nanocatalysts for efficient pre-lithiation additive decomposition and highlights future challenges directions commercialization.

Язык: Английский

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