Negative active material, method of manufacturing its...

Details Negative active material, method of manufacturing its... Negative active material, method of manufacturing its...

2006-04-04

2006-04-04

Barr, Michael (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C029S623100

Reexamination Certificate

active

07022433

ABSTRACT:
A negative active material is characterized by being prepared by adding a lignin having a unit structure represented by the formula (I) as the main structure to a lead oxide. Since the lignin of the formula (I) is added, the negative active material can be prevented from shrinkage due to charge/discharge.(wherein R1is H, OH, COOH, SO3H, SH, C6H5, COO−, SO3−, R2C6H4, (R2)2C6H3, or (R2)3C6H2; and R2is at least one member selected from among OH, COOR, SO3H, and CH2SO3H.)

REFERENCES:
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patent: 11121008 (1999-04-01), None
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patent: 2001202987 (2001-07-01), None

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