Amtek Research International LLC

Daniel Wandera

Richard W Pekala

Robert R Waterhouse

Jeff M Frenzel

Wyatt Self

Eric B Hostetler

Robert Waterhouse

Methods of reducing acid stratification with an acid-soluble and acid-stable polymer with a high molecular weight are disclosed herein. Electrolytes and separators for an energy storage device are disclosed herein. The separator includes a coating containing an acid-soluble and acid-stable polymer with a high molecular weight. The electrolyte includes sulfuric acid and an acid-soluble and acid-stable polymer with a high molecular weight. Methods of making the separators disclosed herein and methods of making batteries are also disclosed herein.

Acid stratification mitigation, electrolytes, devices, and methods related thereto

A solidified, conformable porous composite having interconnected pores and containing thermally-expanded polymer microspheres and a particulate filler material is disclosed herein. An energy storage device containing a solidified, conformable porous composite having interconnected pores and comprising thermally-expanded polymer microspheres and particulate filler material is disclosed herein. A method of making a solidified, conformable porous composite in which no solvent is introduced into and extracted from the composite in the formation of pores is disclosed herein.

Solidified, conformable porous composites and related devices, methods, and uses

The disclosed porous membranes and freestanding composites containing the porous membranes have a solution-cast three-dimensional polymer matrix defining interconnecting pores that provide overall first major surface-to-second major surface fluid permeability. The porous membranes and freestanding composites can be used to separate lead-acid battery electrodes. The porous membranes and freestanding composites can have high porosity and low electrical resistance while having both excellent flexibility and mechanical strength. This can reduce the probability of damage to the separators during battery assembly and also allow production of battery separators with a high overall height, but a minimal backweb thickness.

Porous membranes, freestanding composites, and related devices and methods

An electrically conductive porous composite composed of an expanded microsphere matrix binding a material composition having electrical conductivity properties to form an electrically conductive porous composite is disclosed herein. An energy storage device incorporating the electrically conductive porous composite is also disclosed herein.

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Corvallis, OR, United States of America

Daniel Wandera