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US 12,015,144 B2Granted
Core-shell particles based on red lead for lead-acid batteries
AssigneeEvonik Operations GmbH
InventorsDaniel Esken, Michael Glagla, Rainer Bussar, Micha Kirchgessner, Ian Klein
Life of this patent
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Abstract
Core-shell particles may be based on red lead coated with pyrogenically produced titanium dioxide and/or a pyrogenically produced aluminum oxide, and a process may prepare such core-shell particles which may be used in lead-acid batteries. The red lead may include PbO2 in a range of from 25 to 32 wt. %.
Claims18
A core-shell particle, comprising:
- a core comprising red lead;
- and
- a shell comprising a pyrogenically produced titanium dioxide and/or a pyrogenically produced aluminum oxide.
Dependencies are inferred from the claim text.