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

Arminas Ilginis | Zendy; Nerita Žmuidzinavičienė | Zendy; Egidijus Griškonis | Zendy

Open Access

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

Author(s) -

Arminas Ilginis,

Nerita Žmuidzinavičienė,

Egidijus Griškonis

Publication year - 2021

Publication title -

materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.682

H-Index - 111

ISSN - 1996-1944

DOI - 10.3390/ma14206122

Subject(s) - graphite , materials science , electrode , lead–acid battery , electrolyte , sulfuric acid , inert , composite number , chemical engineering , composite material , inorganic chemistry , battery (electricity) , chemistry , metallurgy , organic chemistry , power (physics) , physics , quantum mechanics , engineering

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/PbO 2 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 PbO 2 electrodes in sulfuric acid electrolytes.

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