ELECTRODE PLATE AND SECONDARY BATTERY USING THE SAME

PROBLEM TO BE SOLVED: To provide a secondary battery, capable of suppressing crack progression and electrode breakage caused by charging and discharging even when a sintered body whose porosity is less than 15% as a positive electrode or a negative electrode is used, having large battery capacitance...

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Bibliographische Detailangaben
1. Verfasser:	SAGO FUMIAKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a secondary battery, capable of suppressing crack progression and electrode breakage caused by charging and discharging even when a sintered body whose porosity is less than 15% as a positive electrode or a negative electrode is used, having large battery capacitance, excellent in cycle characteristics, and having high reliability.SOLUTION: An electrode plate 1, in which a groove 3 is provided on a principal plane of at least one of sintered bodies 2 whose porosity is less than 15%, is used, thus making it possible to suppress electrode breakage caused by progression of a crack generated from a periphery during charging and discharging and deterioration of capacitance after a cycle of charging and discharging.