The invention provides a slurry, such as a lead-acid battery slurry, comprising a polyelectrolyte comb copolymer and lead oxide. Use of polyelectrolyte comb copolymers results in a slurry with low viscosity. In addition, the use of polyelectrolyte comb copolymers controls the growth (e.g., size, morphology and location) of the inactive species, and thus, improves battery cycle life.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 The United States Government has rights in this invention pursuant to contract no. DE-AC05-000R22725 between the United States Department of Energy and UT-Battelle, LLC.