Facile etching for single crystal cathode materials
Abstract
A recycling and synthesis of charge material for secondary batteries generates single-crystal charge materials for producing batteries with greater charge cycle longevity. Charge material particles undergo a heating for fusing or enhancing grain boundaries between polycrystalline particles. The resulting, more well-defined grain boundaries are easily etched by a relatively weak mineral acid solution. The acid solution removes material at the grain boundaries to separate secondary particles into primary particles along the grain boundaries. The resulting single crystal (monocrystalline) charge material particles are washed and filtered, and typically re-sintered to accommodate any needed lithium (lithium carbonate), and result in a charge material with larger surface area, higher lithium diffusivity and lower cation ordering.
- Inventors:
- Issue Date:
- Research Org.:
- Worcester Polytechnic Institute, MA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293915
- Patent Number(s):
- 11827998
- Application Number:
- 17/330,922
- Assignee:
- Worcester Polytechnic Institute (Worcester, MA)
- DOE Contract Number:
- EE0006250
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/26/2021
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Wang, Yan, Ma, Xiaotu, Gratz, Eric, Fu, Jinzhao, and Vanaphuti, Panawan. Facile etching for single crystal cathode materials. United States: N. p., 2023.
Web.
Wang, Yan, Ma, Xiaotu, Gratz, Eric, Fu, Jinzhao, & Vanaphuti, Panawan. Facile etching for single crystal cathode materials. United States.
Wang, Yan, Ma, Xiaotu, Gratz, Eric, Fu, Jinzhao, and Vanaphuti, Panawan. Tue .
"Facile etching for single crystal cathode materials". United States. https://www.osti.gov/servlets/purl/2293915.
@article{osti_2293915,
title = {Facile etching for single crystal cathode materials},
author = {Wang, Yan and Ma, Xiaotu and Gratz, Eric and Fu, Jinzhao and Vanaphuti, Panawan},
abstractNote = {A recycling and synthesis of charge material for secondary batteries generates single-crystal charge materials for producing batteries with greater charge cycle longevity. Charge material particles undergo a heating for fusing or enhancing grain boundaries between polycrystalline particles. The resulting, more well-defined grain boundaries are easily etched by a relatively weak mineral acid solution. The acid solution removes material at the grain boundaries to separate secondary particles into primary particles along the grain boundaries. The resulting single crystal (monocrystalline) charge material particles are washed and filtered, and typically re-sintered to accommodate any needed lithium (lithium carbonate), and result in a charge material with larger surface area, higher lithium diffusivity and lower cation ordering.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {11}
}
Works referenced in this record:
Synthesis of Single Crystal LiNi 0.6 Mn 0.2 Co 0.2 O 2 with Enhanced Electrochemical Performance for Lithium Ion Batteries
journal, January 2018
- Li, Hongyang; Li, Jing; Ma, Xiaowei
- Journal of The Electrochemical Society, Vol. 165, Issue 5
A universal etching method for synthesizing high-performance single crystal cathode materials
journal, September 2021
- Ma, Xiaotu; Vanaphuti, Panawan; Fu, Jinzhao
- Nano Energy, Vol. 87
Method for the recovery of lithium cobalt oxide from lithium ion batteries
patent, May 2018
- Poe, Sarah L.; Paradise, Christopher; Muollo, Laura Rose
- US Patent Document 9,972,830
Charge material for recycled lithium-ion batteries
patent, September 2021
- Wang, Yan; Gratz, Eric; Sa, Qina
- US Patent Document 11,127,992
Method and apparatus for recycling lithium-ion batteries
patent, December 2017
- Wang, Yan; Apelian, Diran; Zou, Haiyang
- US Patent Document 9,834,827