POSITIVE ELECTRODE CURRENT COLLECTOR FOR LEAD ACCUMULATOR
In a positive electrode current collector for a lead-acid battery including a coating of tin dioxide formed on the surface of a current collector substrate of titanium or a titanium alloy, the half width of a peak with the maximum intensity among peaks of tin dioxide in the x-ray diffraction pattern of the positive electrode current collector for a lead-acid battery is 1° or lower.
1 : A positive electrode current collector for a lead-acid battery comprising a coating of tin dioxide formed on the surface of a current collector substrate of titanium or a titanium alloy, wherein the half width of a peak with the maximum intensity among peaks of tin dioxide in the x-ray diffraction pattern of said positive electrode current collector for a lead-acid battery is 1° or lower.
2 : A positive electrode current collector for a lead-acid battery comprising a coating of tin dioxide formed on the surface of a current collector substrate of titanium or a titanium alloy, wherein crystals of said tin dioxide are selectively oriented in 1 or more and 4 or less of the crystal planes.
3 : The positive electrode current collector for a lead-acid battery according to claim 2 , wherein said crystal planes oriented are a ( 110 ) plane, a ( 101 ) plane, a ( 200 ) plane, a ( 211 ) plane, a ( 220 ) plane, a ( 310 ) plane, a ( 112 ) plane, or ( 301 ) plane.
4 : The positive electrode current collector for a lead-acid battery according to claim 1 , wherein said coating contain antimony or fluorine.
5 : A lead-acid battery comprising said positive electrode current collector according to claim 1 .
6 : The lead-acid battery comprising said positive electrode current collector according to claim 4 .
7 : The positive electrode current collector for a lead-acid battery according to claim 2 , wherein said coating contain antimony or fluorine.
8 : The lead-acid battery comprising said positive electrode current collector according to claim 7 .
9 : The positive electrode current collector for a lead-acid battery according to claim 3 , wherein said coating contain antimony or fluorine.
10 : The lead-acid battery comprising said positive electrode current collector according to claim 9 .
11 : A lead-acid battery comprising said positive electrode current collector according to claim 2 .
12 : A lead-acid battery comprising said positive electrode current collector according to claim 3 .