Storage battery system
First Claim
1. A storage battery system comprising at least one of battery modules each comprising a plurality of batteries,each of said plurality of batteries having a battery casing and including an electrode group which is composed of positive electrodes using metal oxide as an active material, negative electrodes made of, as a main component, hydrogen storage alloy which electrochemically absorbs and desorbs hydrogen, and separators, and which is disposed in said battery casing;
- said plurality of batteries being arranged in rows with spaces being defined between adjacent those of said plurality of batteries;
said electrode group having a dimensional relationship such as H>
L>
W, where H is the height of the electrode group, L is the width of the electrode group, and W is the thickness of the electrode group;
a value K which is obtained by multiplying the width L with the thickness W, that is, K=W×
L falling in a range such as 10≦
K≦
100; and
,a ratio D/W between a width D of spaces between the adjacent those of said plurality of batteries and the thickness W of the electrode group falling in a range such as 0.02≦
D/W≦
0.3.
1 Assignment
0 Petitions
Accused Products
Abstract
The dimensions of an electrode group in each battery are set so as to obtain a relationship such as H >L>W, where H is the height of the electrode group, L is the width thereof and W is the thickness thereof, and the product K of the width L and the thickness W, that is, K=L×W, is set so as to fall in a range 10<K<100 while the space D between adjacent batteries is set so as to fall in a range of 0.02≦D/W≦0.3, thereby the efficiency of heat radiation of a battery module or a battery group is enhanced, and accordingly, the cycle life and the discharge capacity of the battery can be enhanced.
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Citations
21 Claims
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1. A storage battery system comprising at least one of battery modules each comprising a plurality of batteries,
each of said plurality of batteries having a battery casing and including an electrode group which is composed of positive electrodes using metal oxide as an active material, negative electrodes made of, as a main component, hydrogen storage alloy which electrochemically absorbs and desorbs hydrogen, and separators, and which is disposed in said battery casing; -
said plurality of batteries being arranged in rows with spaces being defined between adjacent those of said plurality of batteries; said electrode group having a dimensional relationship such as H>
L>
W, where H is the height of the electrode group, L is the width of the electrode group, and W is the thickness of the electrode group;a value K which is obtained by multiplying the width L with the thickness W, that is, K=W×
L falling in a range such as 10≦
K≦
100; and
,a ratio D/W between a width D of spaces between the adjacent those of said plurality of batteries and the thickness W of the electrode group falling in a range such as 0.02≦
D/W≦
0.3. - View Dependent Claims (2, 3, 4, 8, 9, 10, 11, 12, 13, 14)
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5. A storage battery system comprising at least one of battery modules each comprising a plurality of pairs of batteries defining therebetween spaces,
each of said pair of batteries having a battery casing and including an electrode group which is composed of positive electrodes using metal oxide as an active material, negative electrodes made of, as a main component, hydrogen storage alloy which electrochemically absorbs and desorbs hydrogen, and separators, and which is disposed in said battery casing; -
said plurality of pairs of batteries being arranged in rows with spaces being defined therebetween; said electrode group disposed in each of said battery casings and each of said spaces between said batteries having a relationship such as 0.04≦
D2 /W2 ≦
0.6 where W2 is the thickness of the electrode group disposed in each of the battery casings, and D2 is the thickness of the space. - View Dependent Claims (6, 7, 15, 16, 17, 18, 19, 20, 21)
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Specification