Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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8/00
Fuel cells; Manufacture thereof
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H01M8/10
Fuel cells with solid electrolytes
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H01M8/1016
characterised by the electrolyte material
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H01M8/1018
Polymeric electrolyte materials
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H01M8/1069
characterised by the manufacturing processes
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H01M8/1086
After-treatment of the membrane other than by polymerisation
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H01M8/1088
Chemical modification, e.g. sulfonation
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