Development of light-chargeable lithium ion battery devices

光充电锂离子电池装置的开发

• 批准号: 493929-2016
• 负责人: Demopoulos, George
• 金额: $ 13.7万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642014
• 关键词: Development; light; chargeable; lithium; ion

Lithium-ion batteries (LIBs) are the enabling "invisible" technology behind the unprecedented proliferation of all sort of portable electronics such as mobile phones, media players, tablets, laptops etc. to which consumers have come to depend on in ever increasing numbers. Now LIBs are becoming the enabling force that started powering plug-in hybrid (PHEV) and electric vehicles (EV) as our society is moving towards electrification of transportation to address the serious global issue of climate change. At the same time LIBs are called to play a key role in enabling the harnessing of solar energy by allowing direct storage of the intermittingly generated electricity. However, there is growing realization that we are approaching the limit of how much energy we can store in a LIB hence on the available power-especially in the case of portable devices and electric vehicles before it needs to be recharged. This drives an unprecedented R&D effort towards the improvement of the energy and power characteristics of LIBs by developing novel battery chemistries many of which impose formidable safety challenges. In this project we pursue an alternative strategy to address the energy density bottleneck by developing light-chargeable LIBs, i.e. solar-powered rechargeable batteries. This research is undertaken in collaboration with Hydro-Quebec (HQ), a world leader in LIB R&D, and leverages our recent advances in the areas of dye-sensitized solar cell and LIB research. More specifically we propose the design of a photo-absorbing Li-ion cathode (LiFePO4) and its development into light-assisted rechargeable battery device. Preliminary results have provided validation of this paradigm-shifting concept that now we aim to develop further via the study and optimization of the nanostructured photoelectrode's properties and its assembly into a prototype with long cycling performance. This constitutes highly innovative research in the strategic green energy storage field that holds tremendous growth potential and economic opportunity for advanced manufacturing activity in a constantly growing market of many tens of billions annually.

锂离子电池 (LIB) 是各种便携式电子产品空前激增的“隐形”技术，这些电子产品包括手机、媒体播放器、平板电脑、笔记本电脑等，越来越多的消费者开始依赖这些电子产品。现在，随着我们的社会正在朝着交通电气化的方向发展，以解决严重的全球气候变化问题，锂离子电池正在成为开始为插电式混合动力汽车 (PHEV) 和电动汽车 (EV) 提供动力的推动力。与此同时，锂离子电池被要求通过直接存储间歇性发电，在利用太阳能方面发挥关键作用。然而，人们越来越认识到，我们正在接近锂离子电池中可存储能量的极限，因此可用功率也已接近极限，特别是在便携式设备和电动汽车需要充电之前。这推动了前所未有的研发工作，通过开发新型电池化学物质来改善锂离子电池的能量和功率特性，其中许多化学物质带来了巨大的安全挑战。在这个项目中，我们寻求一种替代策略，通过开发光充电锂离子电池（即太阳能充电电池）来解决能量密度瓶颈。这项研究是与世界领先的锂离子电池研发领导者魁北克水电公司 (HQ) 合作进行的，并利用了我们在染料敏化太阳能电池和锂离子电池研究领域的最新进展。更具体地说，我们建议设计光吸收锂离子阴极（LiFePO4）并将其开发为光辅助可充电电池装置。初步结果验证了这一范式转变的概念，现在我们的目标是通过研究和优化纳米结构光电极的性能及其组装成具有长循环性能的原型来进一步开发该概念。这是战略性绿色能源存储领域的高度创新研究，在每年数百亿美元的不断增长的市场中，为先进制造业活动提供了巨大的增长潜力和经济机会。