PFI-TT: Development of Next Generation Sulfur-based Batteries for Enhanced Run Time and Reduced Weight

PFI-TT：开发下一代硫基电池以延长运行时间并减轻重量

• 批准号: 1919177
• 负责人: Vibha Kalra
• 金额: $ 25万
• 依托单位: Drexel University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1919177&HistoricalAwards=false
• 关键词: PFI; TT; Development; Next; Generation

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project is to help all market sectors where lithium ion (Li-ion) batteries are currently used, such as aerospace & defense, transportation, medical, oil & gas, and consumer electronics. Li-ion, the highest-performing commercially available battery technology, currently accounts for 37% of the $23.5 billion battery market. However, it has currently reached the maximum performance that physics and chemistry allow. For the electric vehicle market, these performance limits would require a 1200 lb, $15,000 battery pack in an all-electric sedan, and therefore broad deployment in SUVs, pickup trucks or heavy-duty military or commercial vehicles would be commercially and economically impractical. The envisioned battery technology uses a different chemistry that potentially offers four times better storage capability than Li-ion batteries and is much lighter, leading to new economically feasible electric cars. Through unique partnerships with industry and technology commercialization, this PFI-TT project will enable testing, evaluation & refinement of the proposed technology, production scale-up and a battery prototype.The proposed project focuses on development of Li-S batteries using a commercially-viable carbonate electrolyte, the liquid responsible for transporting Li+ ions between electrodes. The past R&D efforts for Li-S use ether electrolytes that have low boiling point (~42 degrees C) making them extremely flammable and commercially non-viable. Fundamental investigations on the role of the sulfur phase in altering the reaction mechanism have led to the development of sulfur cathodes that successfully function in carbonate electrolytes - like those used in commercial Li-ion batteries for three decades - with a stable four-fold higher capacity at the material level for 1000+ cycles. This PFI-TT project will undertake development activities to reduce battery weight and increase sulfur loading based on success metrics provided by potential partners during preliminary customer discovery, with the objective to achieve four-fold improvement in the "device-level" specific capacity. The proposed technology will also eliminate dead weight (up to 25% of electrode weight) of binders and current collectors' passive components used in current devices and consequently eliminate slurry processing, a necessary processing step needed for current powder-based electrodes.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这种创新合作伙伴关系的更广泛的影响/商业潜力 - 技术翻译（PFI-TT）项目是为了帮助目前使用锂离子（Li-Ion）电池的所有市场领域，例如航空航天和国防，运输，运输，医疗，石油和天然气和消费者电子产品。锂离子是表现最高的市售电池技术，目前占电池市场235亿美元的37％。 但是，它目前已经达到了物理和化学允许的最高表现。 对于电动汽车市场，这些性能限制将需要1200磅，全电动轿车的15,000件电池组，因此在SUV，皮卡车或重型军用或商用车中进行广泛部署将在商业上和经济上不切实际。设想的电池技术采用了不同的化学反应，该化学反应可能比锂离子电池具有四倍的储存能力，并且更轻，从而导致新的经济上可行的电动汽车。通过与行业和技术商业化的独特合作伙伴关系，该PFI-TT项目将实现对拟议技术，生产规模和电池原型的测试，评估和改进。拟议的项目着重于使用市场上可行的碳酸盐电解质来开发Li-S Batteries，该电池是在电极之间运输Li+离子在电极之间运输的液体。过去的LI-S使用R＆D努力使用低沸点（〜42摄氏度），使其极富易燃且商业上不可行。对硫阶段在改变反应机制中作用的基本研究导致了成功在碳酸盐电解质中成功起作用的硫阴极的发展 - 就像在商业锂离子电池中使用的三十年一样，在1000+循环的材料水平上，在材料水平上具有稳定的四倍的容量。 该PFI-TT项目将开展开发活动，以减轻电池重量并根据潜在合作伙伴在初步客户发现期间提供的成功指标增加硫负荷，以实现“设备级”特定能力的四倍提高。所提出的技术还将消除粘合剂和当前收集器在当前设备中使用的被动组件的死重（最多25％的电极重量），并因此消除了污泥处理，这是当前基于粉末电极所需的必要处理步骤。该奖项反映了NSF的法定任务，并通过使用基础的智力效果和宽阔的范围来评估支持NSF的法定任务，并具有值得评估的支持。

项目成果

Sulfur confined MXene hosts enabling the use of carbonate-based electrolytes in alkali metal (Li/Na/K)-sulfur batteries

• DOI: 10.1016/j.mtener.2022.101000
• 发表时间: 2022-05
• 期刊: Materials Today Energy
• 影响因子: 9.3
• 作者: R. Pai;Varun Natu;M. Sokol;M. Carey;T. Greszler;M. Barsoum;V. Kalra

Bottom-up, scalable synthesis of anatase nanofilament-based two-dimensional titanium carbo-oxide flakes

• DOI: 10.1016/j.mattod.2021.10.033
• 发表时间: 2021-12
• 期刊: Materials Today
• 影响因子: 24.2
• 作者: H. Badr;Tarek Aly Elmeligy;M. Carey;Varun Natu;M. Q. Hassig;Craig Johnson;Qiang Qian;Christopher Y. Li;K. Kushnir;Erika Colin-Ulloa;L. Titova;Julia L. Martin;R. Grimm;R. Pai;V. Kalra;Avishek Karmakar;Anthony Ruffino;Stefan Masiuk;Kun Liang;Michael Naguib;Olivia R. Wilson;Andrew J. D. Magenau;Kiana Montazeri;Yucheng Zhu;Hao Cheng;T. Torita;Masashi Koyanagi;Akimaro Yanagimachi;T. Ouisse;M. Barbier;F. Wilhelm;A. Rogalev;Jonas Björk;P. Persson;Johanna Rosen;Yong Hu;M. Barsoum

Tuning functional two-dimensional MXene nanosheets to enable efficient sulfur utilization in lithium-sulfur batteries

• DOI: 10.1016/j.xcrp.2021.100480
• 发表时间: 2021-07-21
• 期刊: CELL REPORTS PHYSICAL SCIENCE
• 影响因子: 8.9
• 作者: Pai, Rahul;Natu, Varun;Kalra, Vibha
• 通讯作者: Kalra, Vibha