SusChem: Development and fundamental investigation of a novel low cost recycling technology for spent Li-ion batteries

SusChem：新型低成本废旧锂离子电池回收技术的开发和基础研究

• 批准号: 1605692
• 负责人: Hailong Chen
• 金额: $ 33.01万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1605692&HistoricalAwards=false
• 关键词: SusChem; Development; fundamental; investigation; novel

1605692 Chen, HailongOwing to high energy density and long cycling life, Li-ion batteries (LIB) are becoming one of the most popular rechargeable batteries used as power sources in a variety of devices and tools, such as in sensors, smart phones, electric and hybrid electric vehicles. However, many of the electrode materials of LIBs are toxic and potentially environmentally hazardous. Additionally, LIB electrode constituents Co, Ni, and Li are also relatively precious metals relying on geologically limited sources from outside of the U.S. Therefore, from the viewpoint of environmental, sustainability, as well as national security considerations, it is critically important to have good strategies to recycle spent LIBs. However, it is scientifically and practically challenging to develop a highly efficient and economically justifiable recycling method, owing to the complex chemistries in LIB systems. The LIB recycling industry is only at the starting stage compared to the mature and fast growing LIB manufacturing industry. Current LIB recycling technologies are either energy costly or environmentally unfriendly. In this project, a novel low cost method to recycle Co, Ni, and Li metals from spent LIBs will be explored.Systematic investigation will be applied on each and every step of the recycling process to achieve a fundamental understanding on (1) how to best handle spent LIBs, (2) how to effectively and efficiently extract and separate the valuable elements from the electrode materials, and (3) how to make the method robust for a wide variety of LIB chemistries. Advanced in situ characterization methods, such as synchrotron based in situ X-ray diffraction, will be used to study the reaction mechanisms of the electrode materials in the recycling reactions. Findings from this project may greatly advance knowledge on the chemical reactions of metal oxides and the nucleation and crystal growth of nanoclusters in solution. The development and optimization of this novel recycling method may significantly reduce the potential environmental hazards from spent LIBs, lower the cost of LIB production, and increase the sustainability of LIB industry by turning it from a current open-loop model to a close-loop model. A new course on Energy Technology and Environmental Challenges will be organized at Georgia Tech focusing on the interdisciplinary research opportunities that are highlighted in the research. If this technology is proved to be effective and scalable for commercialization, it can be a game changing factor to current Li-ion battery industry and can bring revolutionary changes to the transportation industry as it would significantly change the cost-production relationship and sustainability aspects of these industries.

1605692 Chen，由于高能量密度和较长的骑自行车寿命而冰雹，锂离子电池（LIB）正成为最受欢迎的可充电电池之一，用作各种设备和工具的电源，例如在传感器，智能手机，电动机和混合电动汽车中。但是，许多Lib的电极材料有毒，并且可能对环境有害。此外，LIB电极成分Co，NI和LI也是相对贵重的金属，依靠来自美国以外的地质有限来源，因此，从环境，可持续性以及国家安全考虑的角度来看，拥有良好的策略来回收用过的libs非常重要。但是，由于LIB系统中的复杂化学作用，开发一种高效且经济上合理的回收方法是科学和实际上具有挑战性的。与成熟且快速增长的自由生产行业相比，LIB回收行业仅在起步阶段。当前的LIB回收技术要么是能源昂贵的或环境不友好的。在这个项目中，将探索一种新颖的低成本方法，用于回收Co，Ni和Li Metals。将在回收过程的每个步骤上进行系统调查，以实现（1）如何最好地处理花费的Libs的基本了解，（2）如何有效地提取和分离有价值的元素，并将其与电极材料进行化学元素，并将其分离为3）。先进的原位表征方法，例如基于原位X射线衍射的同步加速器，将用于研究回收反应中电极材料的反应机理。该项目的发现可能大大提高了金属氧化物的化学反应以及溶液中纳米簇的成核和晶体生长的知识。这种新颖的回收方法的开发和优化可能会大大减少用过的LIB所带来的环境危害，降低LIB生产成本，并通过将其从当前的开环模型转变为近环模型，从而提高自由行业的可持续性。佐治亚理工学院将组织有关能源技术和环境挑战的新课程，重点是研究中强调的跨学科研究机会。如果事实证明这项技术对于商业化是有效的且可扩展的，那么它可能是当前锂离子电池行业的游戏因素，并且可以为运输行业带来革命性的变化，因为它将大大改变这些行业的成本产生关系和可持续性方面。

项目成果

Comprehensive Understandings of Rare Earth Element (REE) Speciation in Coal Fly Ashes and Implication for REE Extractability

• DOI: 10.1021/acs.est.9b00005
• 发表时间: 2019-05-07
• 期刊: ENVIRONMENTAL SCIENCE & TECHNOLOGY
• 影响因子: 11.4
• 作者: Liu, Pan;Huang, Rixiang;Tang, Yuanzhi
• 通讯作者: Tang, Yuanzhi