Electrodeposition of Pb and PbO2 on Graphite Felt in Membraneless Flow-Through Reactor: A Method to Prepare Lightweight Electrode Grids for Lead-Acid Batteries

Abstract

One of the possible ways of mitigating the primary lead-acid battery downside—mass— is to replace the heavy lead grids that can add up to half of the total electrode’s mass. The grids can be exchanged for a lightweight, chemically inert, and conductive material such as graphite felt. To reduce carbon surface area, Pb/PbO2 can be electrochemically deposited on graphite felt. A flow-through reactor was applied to enhance penetration of adequate coverage of graphite felt fibers. Three types of electrolytes (acetate, nitrate, and methanesulfonate) and two additives (ligninsulfonate and Triton X-100) were tested. The prepared composite electrodes showed greater mechanical strength, up to 5 times lower electrical resistivity, and acted as Pb and PbO2 electrodes in sulfuric acid electrolytes.

Copper Sulfide and Graphite Felt Composites as Promising Electrode Materials for Sodium-Ion Batteries

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Hybrid Composite Foams Based on Pb Alloys for Lightweight Batteries

“…The attention to exploring lightweight and highperformance batteries has grown due to several reasons such as environmental problems, limited fuel resources, and irrefutable climate change [1,2]. Due to the characteristics of deep-rooted technology, cut price, good safety, recyclability, accessible maintenance, and consistent behavior, lead-acid batteries (LABs) have been widely utilized in numerous applications, keeping the greatest market share in all types of batteries.…”