Process for making battery plate
AssigneeDelphi Technologies, Inc.
InventorsWellington Y. Kwok, Gary L. Ballard
Life of this patent
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Abstract
A continuous paste making process for lead acid batteries that includes the steps of mixing water with a lead oxide, reaction an acid with the lead oxide in a mixture to produce lead acid compounds, and forming a paste including interlocking lead acid crystals from the lead acid compounds, where the mixing, reacting, and crystal forming steps occur in an extrusion apparatus. The method also includes the step of extruding the paste from the extrusion apparatus into a grid where the paste is dried to form a battery plate of the lead-acid battery.
Claims17
A battery plate making method for a lead-acid battery, which comprises the steps of:
- mixing water with a lead oxide;
- reacting an acid with said lead oxide in a mixture to produce lead-oxide acid components;
- and
- forming a paste comprising interlocking lead acid crystals from said lead oxide-lead acid compounds,
- characterized in that said mixing, reacting, and crystal forming steps occur in an extrusion apparatus at a high temperature, and said method further comprises the step of extruding said paste from said extrusion apparatus into a grid preheated to approximate a temperature of said paste when said paste is extruded such that said paste is dried to form a battery plate of said lead—acid battery.
A battery plate making method for a lead-acid battery, which comprises the steps of:
- mixing water with a lead oxide;
- reacting an acid with said lead oxide in a mixture to produce lead-oxide acid components;
- and
- forming a paste comprising interlocking lead acid crystals from said lead oxide-lead acid compounds,
- characterized in that said mixing, reacting, and crystal forming steps occur in an extrusion apparatus, and said method further comprises the step of extruding said paste from said extrusion apparatus into a grid where said paste is dried to form a battery plate of said lead-acid battery,
- wherein said extrusion apparatus comprises a first cylindrical bore having a first helical rotatable member disposed therein, the rotation of which causes any material in the first cylindrical bore to be moved toward a die orifice,
- wherein said extrusion apparatus further comprises a second cylindrical bore having a second helical rotatable member disposed therein, the rotation of which causes any material in said second cylindrical bore to be forced through said die orifice as part of said extruding step.
Dependencies are inferred from the claim text.