Electrode unit for prismatic battery, prismatic battery, and...

Details Electrode unit for prismatic battery, prismatic battery, and... Electrode unit for prismatic battery, prismatic battery, and...

2006-10-25

2011-10-18

Ruddock, Ula C. (Department: 1729)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Intracell assembly having cell electrode connector

C429S152000, C429S160000, C429S178000, C429S179000, C429S209000, C429S210000, C429S211000

Reexamination Certificate

active

08039143

ABSTRACT:
To provide an electrode unit for a prismatic battery capable of increasing the output of the battery while suppressing the battery internal resistance value and improving the degree of freedom of the size of the electrode plate. An electrode unit for a prismatic battery including an electrode group in which positive electrode plates and negative electrode plates in an almost rectangular shape are alternately stacked with separators interposed therebetween. In each of the positive electrode plate and the negative electrode plate, core material exposed portions are formed at least on two side edges. The positive electrode plates and the negative electrode plate are stacked such that their core material exposed portions are directed not to overlap each other in the stack direction. The electrode unit for a prismatic battery includes a positive current collector having a shape capable of joining to all of the core material exposed portions of the positive electrode plates constituting the electrode group, and a negative current collector capable of joining to all of the core material exposed portions of the negative electrode plates constituting the electrode group, not in contact with the positive current collector.

REFERENCES:
patent: 6413668 (2002-07-01), Sandberg et al.
patent: 7501203 (2009-03-01), Shimamura et al.
patent: 2003/0113621 (2003-06-01), Shimamura et al.
patent: 2003/0215706 (2003-11-01), Alunans et al.
patent: 2004/0009403 (2004-01-01), Kim et al.
patent: 2004/0121228 (2004-06-01), Ovshinsky et al.

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