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Title: Lead deficiency and hydrogen content in battery electrode. beta. -PbO/sub 2/

Journal Article · · J. Electrochem. Soc.; (United States)
DOI:https://doi.org/10.1149/1.2124248· OSTI ID:5369149

Neutron powder diffraction data have been collected for ..beta..-PbO/sub 2/ obtained from lead-acid battery plates cycled in H/sub 2/SO/sub 4/ and D/sub 2/SO/sub 4/. A comparison of total scattering cross sections for the hydrogenated sample vs. the deuterated sample indicates a bulk hydrogen concentration of 0.21 H atoms per PbO/sub 2/ unit. Rietveld refinements of the data yield the expected tetragonal ..beta..-PbO/sub 2/ structure, P4/sub 2//mnm, with a 3-5% vacancy concentration on the lead sites. These results suggest that at least part of the hydrogen is incorporated into the ..beta..-PbO/sub 2/ crystalline lattice.

Research Organization:
Argonne National Laboratory, Solid State Science Division and Chemical Engineering Division, Argonne, Illinois
OSTI ID:
5369149
Journal Information:
J. Electrochem. Soc.; (United States), Vol. 129:8
Country of Publication:
United States
Language:
English