Battery paste compositions and electrochemical cells for use therewith

Patent · Tue Feb 16 00:00:00 EST 1999

OSTI ID:872153

Olson, John B ^[1]

---

1. Boulder, CO

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.

• DOE Contract Number: ZCB-4-13032-10; TCB02586
• Assignee: Optima Batteries, Inc. (Aurora, CO)
• Patent Number(s): US 5871862
• Application Number: 08/853,377
• OSTI ID: 872153
• Country of Publication: United States
• Language: English

Related Subjects

battery
paste
compositions
electrochemical
cells
therewith
improved
composition
lead-acid
cell
incorporates
positive
current
collector
negative
coated
containing
lead-containing
vehicle
form
plate
absorbent
electrolyte-containing
separator
positioned
plates
special
additive
consisting
polyvinylsulfonic
acid
salts
provides
benefits
including
cycle
life
increased
charge
capacity
enhanced
overall
stability
makes
pastes
smoother
adhesive
improving
application
process
conventional
flat-plate
spirally
wound
batteries
equal
effectiveness
improved battery
negative current
cycle life
sulfonic acid
current collector
electrochemical cells
electrochemical cell
spirally wound
paste compositions
including improved
battery paste
positive current
paste composition
charge capacity
wound batteries
lead-acid electrochemical
/429/29/141/