Reactive boride infusion stabilizes Ni-rich cathodes for lithium-ion batteries
- Ulsan National Inst. of Science and Technology (UNIST) (Korea); Massachusetts Institute of Technology
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Ulsan National Inst. of Science and Technology (UNIST) (Korea)
Engineered polycrystalline electrodes are critical to the cycling stability and safety of lithium-ion batteries, yet it is challenging to construct high-quality coatings at both the primary- and secondary-particle levels. Here, we present a room-temperature synthesis route to achieve full surface coverage of secondary particles and facile infusion into grain boundaries, thus offering a complete “coating-plus-infusion” strategy. Cobalt boride metallic glass is successfully applied to Ni-rich layered cathode LiNi0.8Co0.1Mn0.1O2. Here, it dramatically improves the rate capability and cycling stability, including under high-discharge-rate and elevated-temperature conditions and in pouch full cells. The superior performance originates from simultaneous suppression of microstructural degradation of intergranular cracking and side reactions with electrolyte. Atomistic simulations identified the critical role of strong selective interfacial bonding, which offers not only a large chemical driving force to ensure uniform reactive wetting and facile infusion but also lowered the surface/interface oxygen activity, contributing to the exceptional mechanical and electrochemical stabilities of the infused electrode.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0002633
- OSTI ID:
- 1775110
- Journal Information:
- Nature Energy, Journal Name: Nature Energy Vol. 6; ISSN 2058-7546
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
High-Performance Layered Ni-Rich Cathode Materials Enabled by Stress-Resistant Nanosheets
Performance of Different Water-Based Binder Formulations for Ni-Rich Cathodes Evaluated in LiNi0.8Mn0.1Co0.1O2//Graphite Pouch Cells
An ultrathin solid-state electrolyte film coated on LiNi0.8Co0.1Mn0.1O2 electrode surface for enhanced performance of lithium-ion batteries
Journal Article
·
Tue Jan 31 19:00:00 EST 2023
· ACS Applied Materials and Interfaces
·
OSTI ID:2404392
Performance of Different Water-Based Binder Formulations for Ni-Rich Cathodes Evaluated in LiNi0.8Mn0.1Co0.1O2//Graphite Pouch Cells
Journal Article
·
Thu Apr 28 20:00:00 EDT 2022
· Journal of the Electrochemical Society
·
OSTI ID:1866693
An ultrathin solid-state electrolyte film coated on LiNi0.8Co0.1Mn0.1O2 electrode surface for enhanced performance of lithium-ion batteries
Journal Article
·
Mon Nov 08 19:00:00 EST 2021
· Energy Storage Materials
·
OSTI ID:1886227