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US 8,298,720 B2Granted
Proton conductor
AssigneeHonda Motor Co., Ltd.
InventorsTadahiro Shiba, Hitoshi Iwadate
Life of this patent
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AssigneeHonda Motor Co., Ltd.
InventorsTadahiro Shiba, Hitoshi Iwadate
Estimating the term…
A proton conductor is formed of a porous body as a substrate and proton-conducting polymer covalently bonded to inner surfaces of pores of the porous body. The proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. The proton-conducting polymer has a substantially cylindrical structure in which the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. The salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure.
A proton conductor comprising a porous body having pores for holding proton-conducting polymers therein, the proton-conducting polymers each comprising a linear main chain and a plurality of branched side chains, wherein each of said branched side chains is bonded to said main chain at one end and bonded to a proton-conducting salt at another end, said branched side chains extend radially from said main chain, and said salts of different branched side chains are circumscribed by a virtual circle having a center on the cross-sectional center of said main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of said main chain,
Dependencies are inferred from the claim text.