Advanced Materials for Novel Energy Storage Technologies Beyond Lithium-Ion Batteries

用于锂离子电池之外的新型储能技术的先进材料

• 批准号: RGPIN-2018-06725
• 负责人: Wang, Xiaolei
• 金额: $ 3.21万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=714405
• 关键词: Advanced; Materials; Novel; Energy; Storage

New rechargeable battery technologies play an important role in replacing lithium-ion batteries (LIBs) towards next-generation electronics, electric vehicles and grid energy storage applications. They address the challenges of (i) energy density, that of LIBs has already reached the limit; (ii) the cost, that of LIBs is steadily increasing due to the uneven distribution of Li resources; and (iii) the safety, where LIBs suffer from fire risks arising from the flammable organic solvents in electrolyte. Therefore, the LONG-TERM OBJECTIVE of my research is to develop new rechargeable battery technologies beyond conventional LIBs, including Li-S, Na/Mg/Al-ion, and aqueous Zn-ion batteries. Li-S chemistry enables an extremely high theoretical energy (2,600 vs. 440 W h kg-1 of LIBs), while utilizing other alkaline ions such as Na+, Mg2+, and Al3+ can effectively mitigates Li shortage due to their high abundance. Aqueous batteries utilizing low-cost and safe water-based electrolytes are also promising alternatives. Particularly, Zn2+ based batteries are advantageous owing to the stability in water, low cost, and low redox potential providing high energy. Advanced electrode energy material is critical to improve the electrochemical performance in terms of specific capacity, cyclability, and rate capability. Hence, the SHORT-TERM OBJECTIVES (next 5 years) of this research are: (i) to design and develop novel nanoarchitectured energy materials with desired morphologies and structures; (ii) to study and analyze electrochemical behaviors of these materials for Li-S, Na/Mg/Al-ion, and aqueous Zn-ion batteries; (iii) to understand electrochemical insertion/de-insertion mechanisms of these materials at the molecular level, and to correlate the electrochemical performance with the materials' microstructures and nanoarchitectures. Research will focus on building microstructures which favor ions/electrons transfer, charge separation, redox reactions especially occurring within the electrode or at the interface of electrode and electrolyte. Special focus will be given to understand electrochemical behaviors by correlating the performance with materials properties. This research program will provide top-leveled HQP training in broad areas spanning materials science, nanotechnology and clean energy technologies. The execution of this research will create many opportunities for global collaborations with researchers, industrial partners and investors. The success of this research program will not only benefit related industries such as battery, electronics, automobile, and manufacturing, but also create both short- and long-term jobs, which positions Canada as a leader in the rapidly growing markets. The realization of these battery technologies will reduce greenhouse gas emission, providing significant social and environmental benefits to all Canadians.

新的可充电电池技术在取代锂离子电池（lib）走向下一代电子产品、电动汽车和电网储能应用方面发挥着重要作用。它们解决了以下挑战：(1)能量密度，lib的能量密度已经达到极限；（ii）成本，由于锂资源分布不均，lib的成本稳步上升；（iii）安全性，电解液中的易燃有机溶剂使lib存在火灾风险。因此，我研究的长期目标是开发超越传统锂电池的新型可充电电池技术，包括Li-S、Na/Mg/ al离子和含水锌离子电池。