A conformal heat-drying direct ink writing 3D printing for high-performance lithium-ion batteries
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Case Western Reserve Univ., Cleveland, OH (United States)
High areal capacity electrodes hold great potential for high-energy density lithium-ion batteries (LIBs), but their poor electrochemical kinetics limit their power density. Here, in this study, high areal capacity 3D-structured LiNi0.8Mn0.1Co0.1O2 cathodes (4.3 mAh cm-2) are prepared via 3D printing with a manner of direct ink writing. The electrodes had an enlarged electrode–electrolyte contact area, shortened diffusion pathway, and reduced intercalation-induced stress, thereby delivering enhanced rate capability and cyclability in LIBs, which is 143.6 mAh g-1 at 3C and a 60.2 % capacity retention over 800 cycles at 1C. Moreover, at electrode level, the 3D-NMC exhibits an energy and power densities of 313.1 Wh kg-1 and 657.9 W kg-1, respectively. Furthermore, the theoretical calculation suggests that reducing the gap width will be highly beneficial to the energy and power densities. This work establishes a milestone in understanding the cycling effect on the electrode local structure, including the void area and the LiNi0.8Mn0.1Co0.1O2 region, which confirms the effectiveness of 3D printing for electrode preparation.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1995699
- Journal Information:
- Materials Today Chemistry, Journal Name: Materials Today Chemistry Vol. 32; ISSN 2468-5194
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English