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Title: Battery paste compositions and electrochemical cells for use therewith

An improved battery paste composition and a lead-acid electrochemical cell which incorporates the composition. The cell includes a positive current collector and a negative current collector which are each coated with a paste containing one or more lead-containing compositions and a paste vehicle to form a positive plate and a negative plate. An absorbent electrolyte-containing separator member may also be positioned between the positive and negative plates. The paste on the positive current collector, the negative current collector, or both further includes a special additive consisting of polyvinylsulfonic acid or salts thereof which provides many benefits including improved battery cycle life, increased charge capacity, and enhanced overall stability. The additive also makes the pastes smoother and more adhesive, thereby improving the paste application process. The paste compositions of interest may be used in conventional flat-plate cells or in spirally wound batteries with equal effectiveness.
Authors:
 [1]
  1. (Boulder, CO)
Publication Date:
OSTI Identifier:
872729
Report Number(s):
US 5998062
US patent application
DOE Contract Number:
ZCB-4-13032-10
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
battery; paste; compositions; electrochemical; cells; therewith; improved; battery; paste; composition; lead-acid; electrochemical; cell; incorporates; composition; cell; positive; current; collector; negative; current; collector; coated; paste; containing; lead-containing; compositions; paste; vehicle; form; positive; plate; negative; plate; absorbent; electrolyte-containing; separator; positioned; positive; negative; plates; paste; positive; current; collector; negative; current; collector; special; additive; consisting; polyvinylsulfonic; acid; salts; provides; benefits; including; improved; battery; cycle; life; increased; charge; capacity; enhanced; overall; stability; additive; makes; pastes; smoother; adhesive; improving; paste; application; process; paste; compositions; conventional; flat-plate; cells; spirally; wound; batteries; equal; effectiveness; improved battery; improved battery; negative current; negative current; cycle life; sulfonic acid; current collector; current collector; current collector; current collector; electrochemical cells; electrochemical cell; electrochemical cell; spirally wound; paste compositions; paste compositions; including improved; battery paste; battery paste; positive current; positive current; paste composition; paste composition; paste composition; charge capacity; wound batteries; lead-acid electrochemical /429/29/141/