Scalable fabrication of on-chip Li CO2 batteries for efficient electrocatalysts screening and energy storage mechanism study

可扩展制造片上锂二氧化碳电池，用于高效电催化剂筛选和储能机制研究

• 批准号: EP/V002260/1
• 负责人: Yunlong Zhao
• 金额: $ 31.05万
• 依托单位: University of Surrey
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV002260%2F1
• 关键词: Scalable; fabrication; chip; Li; CO2

The gradual depletion of fossil fuels and continuous emissions of greenhouse gas are two major energy and environmental problems that confront the world. To solve these worldwide issues, the UK becomes the first major economy to pass the net-zero emissions law. The new target requires the UK to bring all greenhouse gas emissions to net-zero by 2050. Thus, how to maximise the electrical energy supplies and balance the CO2 emissions becomes a critical issue to realise the low carbon society. Metal-CO2 batteries, with the dual characteristics of both effective CO2 fixation and advanced energy storage/conversion, will be perfectly aligned with the national strategy in clean energy and sustainability. Among different metal-CO2 batteries, Li-CO2 batteries are considered the best candidates due to their high theoretical specific energy density (~1800 Wh/kg) and relatively high discharge potential (~2.8 V). However, the development of Li-CO2 batteries is still in its infancy stage. This project aims to make advancements in Li-CO2 batteries with a focus on screening efficient cathode electrocatalysts and studying reaction mechanisms.The high charge potential and unclear reaction mechanisms of current Li-CO2 batteries results in its poor reversibility and short cycle life. Therefore, massive efforts need to devote to find efficient catalysts and understand the comprehensive mechanisms. This project proposes a versatile screening and in situ characterisation platform for rapid screening of highly efficient electrocatalysts and in-depth studying of reaction mechanisms. This project details a specific method to fabricate on-chip Li-CO2 batteries. Combine a unique four-electrode circuit with advanced high-resolution characterisation methods, the structure-property relationship and underlying mechanism of Li-CO2 batteries will be revealed, which could further guide the optimisation of Li-CO2 batteries.Project partners NPL (in situ characterisations), Johnson Matthey (materials and batteries) and QinetiQ (manufacturing and batteries) will provide essential know-how in order to help achieve the project aims: to fabricate on-chip Li-CO2 batteries prototype; to select optimal electrocatalysts; to construct in situ characterisation platform and uncover the underlying mechanism; to optimise the performance of Li-CO2 batteries.This project is the natural result of the PI's expertise in the scalable fabrication of on-chip devices, rational design of electrocatalysts and battery, and in situ electrochemical characterisations. The framework of the proposed work will be underpinned by extensive energy materials characterisation expertise and infrastructure, as well as extensive expertise and facilities in battery manufacturing and testing at the University of Surrey.

化石燃料的逐渐枯竭和温室气体的持续排放是当今世界面临的两大能源和环境问题。为了解决这些全球性问题，英国成为第一个通过净零排放法的主要经济体。新目标要求英国到2050年将所有温室气体排放量降至净零。因此，如何最大限度地提高电能供应和平衡CO2排放成为实现低碳社会的关键问题。金属-CO2电池具有有效的CO2固定和先进的能量存储/转换的双重特性，将与国家清洁能源和可持续发展战略完美契合。在不同的金属-CO2电池中，Li-CO2电池被认为是最好的候选者，因为它们具有高的理论比能量密度（~1800 Wh/kg）和相对高的放电电位（~2.8 V）。然而，Li-CO2电池的发展仍处于起步阶段。本项目旨在推动Li-CO2电池的发展，重点是筛选高效的阴极电催化剂和研究反应机理。目前Li-CO2电池的充电电位高，反应机理不清楚，导致其可逆性差，循环寿命短。因此，需要付出巨大的努力来寻找高效的催化剂和了解全面的机制。该项目提出了一个通用的筛选和原位表征平台，用于快速筛选高效电催化剂和深入研究反应机理。该项目详细介绍了制造片上Li-CO2电池的具体方法。联合收割机将独特的四电极电路与先进的高分辨率表征方法相结合，揭示Li-CO2电池的结构-性能关系和潜在机理，从而进一步指导Li-CO2电池的优化。项目合作伙伴NPL（原位表征），约翰逊·马泰（材料和电池）和QinetiQ（制造和电池）将提供必要的专业知识，以帮助实现项目目标：制造片上Li-CO2电池原型;选择最佳的电催化剂;该项目是PI在片上器件的可扩展制造、电催化剂和电池的合理设计以及原位电化学表征方面的专业知识的自然结果。拟议工作的框架将得到广泛的能源材料表征专业知识和基础设施的支持，以及萨里大学在电池制造和测试方面的广泛专业知识和设施。

项目成果

Xenon Ion Implantation Induced Surface Compressive Stress for Preventing Dendrite Penetration in Solid-State Electrolytes.

• DOI: 10.1002/smll.202108124
• 发表时间: 2022-04
• 期刊: Small
• 影响因子: 13.3
• 作者: Xuhui Yao;E. Olsson;Manman Wang;Jianan Wang;Q. Cai;N. Peng;R. Webb;Yunlong Zhao

Degradation Diagnostics from the Subsurface of Lithium-Ion Battery Electrodes

锂离子电池电极表面下的退化诊断

• DOI: 10.1002/eem2.12221
• 发表时间: 2021
• 期刊: ENERGY & ENVIRONMENTAL MATERIALS
• 影响因子: 15
• 作者: Yao X

Rectifying interphases for preventing Li dendrite propagation in solid-state electrolytes

纠正界面以防止固态电解质中锂枝晶的生长

• DOI: 10.1039/d2ee04006a
• 发表时间: 2023
• 期刊: Energy & Environmental Science
• 影响因子: 32.5
• 作者: Yao X

Probing interfacial electrochemistry by in situ atomic force microscope for battery characterization

• DOI: 10.1002/bte2.2023006
• 发表时间: 2023-10
• 期刊: Battery Energy
• 作者: Manman Wang;Zhibo Song;Jinxin Bi;Huanxin Li;Ming Xu;Yi Gong;Yundong Zhou;Yunlong Zhao

Rational Catalyst Structural Design to Facilitate Reversible Li-CO2 Batteries with Boosted CO2 Conversion Kinetics

• DOI: 10.1016/j.nanoen.2023.108872
• 发表时间: 2023-09
• 期刊: Nano Energy
• 影响因子: 17.6
• 作者: Shiming Chen;Kai Yang;Hengyao Zhu;Jianan Wang;Yi Gong;Huanxin Li;Manman Wang;Wenguang Zhao-Wenguang-Z