Tangent gradient concentration material for battery, digital gradient concentration material for battery

Patent · Tue May 31 00:00:00 EDT 2022

OSTI ID:1892999

Shin, YoungHo; Krumdick, Gregory K.

The invention provides a cathode active material having a discrete change in concentrations of a first base region and a second pulse region. Also provided is a method for preparing a cathode active material, the method having the steps: supplying chelating agent, aqueous basic solution and a first aqueous metal salt solution to a reactor to create a base region; supplying a second aqueous metal-salt solution to a reactor to form a pulse region, wherein the second aqueous metal-salt solution is intermittently or continuously added during or after the creation of the base region; thermally treating the base region and the pulse region to create active metal precursors; mixing the precursors with lithium salt to produce a mixture; and thermally treating the mixture.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-06CH11357
• Assignee: UChicago Argonne, LLC (Chicago, IL)
• Patent Number(s): 11,349,118
• Application Number: 16/140,234
• OSTI ID: 1892999
• Resource Relation: Patent File Date: 09/24/2018
• Country of Publication: United States
• Language: English