Innovative Design and Manufacturing of 2.5D Battery with High Energy and Power Density (Final Report)

Technical Report · Thu Oct 20 04:00:00 EDT 2022

DOI:https://doi.org/10.2172/2318549· OSTI ID:2318549

Dunn, Bruce ^[1]; Wang, Yinmin Morris ^[2]; Worsley, Marcus ^[3]

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1. Univ. of California, Los Angeles, CA (United States); UCLA
2. Univ. of California, Los Angeles, CA (United States)
3. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

The goal of this project is to develop cathode inks, to be used in additive manufacturing (AM), that lead to a low-cost, fast manufacturing processes for a new type of non-planar, 2.5D lithium-ion battery (LIB). 2.5D batteries, comprised of a high-aspect-ratio 3D electrode combined with a 2D planar electrode, can simplify the fabrication process because there is no need for the alignment steps seen in traditional 3D batteries. For the success of the two AM processes identified in this project, development of cathode inks is key component because it allows for both platforms to be evaluated in achieving high performance batteries and ease of manufacturing. The two AM processes explored in this project are direct ink writing (DIW) and templating. Both of these processes have been shown to be successful in depositing materials for traditional LIBs and will be used now for the 3D array electrode configuration as part of the 2.5D battery.

• Research Organization: Univ. of California, Los Angeles, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Materials & Manufacturing Technologies Office (AMMTO)
• DOE Contract Number: EE0009108
• OSTI ID: 2318549
• Report Number(s): DOE-UCLA--0009108
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
direct ink writing
lithium ion batteries
lithium iron phosphate cathodes