Paradigm-shifting catalyst layer design for high performance and low cost polymer electrolyte fuel cells

用于高性能和低成本聚合物电解质燃料电池的范式转换催化剂层设计

• 批准号: 463024-2014
• 负责人: Karan, Kunal
• 金额: $ 9.67万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=598127
• 关键词: Paradigm; shifting; catalyst; layer; design

Polymer electrolyte fuel cells (PEFCs) are at the forefront of technological solutions that are aimed at meeting the global challenge of developing highly efficient, cost competitive energy conversion systems that also have a low environmental footprint. PEFCs cleanly convert the chemical energy of hydrogen to electricity at high efficiency in their 'catalyst layers" (CLs), while generating only purewater and heat as by-products. PEFC technology will constitute nearly 25% of the global fuel cell market, projected to exceed $40B by 2022. Our industry partner, Ballard Power Systems in Burnaby, ranked #1 globally in PEFC technology, is thus poised to reap tremendous economic benefits in the future. To remain competitive and increase their market share, the cost of Ballard's PEFC system must be reduced and its performance enhanced. These issues arise partly because current PEFC CLs are made using an ink in which carbon powder particles that support expensive platinum (Pt) nanoparticles are mixed randomly with a disordered polymer binder. This results in poorly used Pt (adding to cost) or poorly accessible pores (resulting in poor performance) in the dried ink or CL.

聚合物电解质燃料电池（pefc）处于技术解决方案的前沿，旨在满足开发高效，具有成本竞争力的能源转换系统的全球挑战，同时具有低环境足迹。pefc在其“催化剂层”（CLs）中将氢的化学能高效地转化为电能，而副产品只产生纯净水和热量。PEFC技术将占全球燃料电池市场的近25%，预计到2022年将超过400亿美元。我们的行业合作伙伴，位于本那比的巴拉德电力系统公司，在PEFC技术方面排名全球第一，因此有望在未来获得巨大的经济效益。为了保持竞争力并增加市场份额，巴拉德的PEFC系统必须降低成本并提高其性能。出现这些问题的部分原因是，目前的PEFC cl是用一种墨水制造的，在这种墨水中，支持昂贵铂纳米粒子的碳粉颗粒与无序的聚合物粘合剂随机混合。这导致在干燥的油墨或CL中Pt使用不良（增加成本）或不易接近的孔隙（导致性能差）。