Chemistry: electrical current producing apparatus – product – and – With control means responsive to battery condition sensing... – Temperature control
Patent
1988-10-11
1990-01-30
Kalafut, Stephen J.
Chemistry: electrical current producing apparatus, product, and
With control means responsive to battery condition sensing...
Temperature control
429120, 429 50, 320 35, H01M 1050
Patent
active
048973220
ABSTRACT:
In conventional high-temperature storage batteries, cooling systems of very large dimension are provided to prevent overheating of the storage cells even when maximum power is being delivered. The object of the invention is to provide a method which makes it possible to equip high-temperature storage batteries with cooling systems which are of smaller dimension and with which any overheating of the storage cells is ruled out. According to the invention, at the permissible internal temperature the current having a heat loss which produces the internal temperature is determined while taking the parameters associated with the high-temperature storage battery into account. The internal temperature is continuously measured during the delivery of the current. The cooling system is switched on if the internal temperature rises above the permissible value. If a further increase in the internal temperature occurs, despite the activation of the cooling system, the power delivered by the high-temperature storage battery is reduced. Once the internal temperature has fallen again to a specified minimum value which, however, need not be lower than the working temperature of the storage cells, the current limitation is removed and the cooling system is switched off.
REFERENCES:
patent: 4011366 (1977-03-01), Bones et al.
patent: 4376809 (1983-03-01), Bindin
patent: 4497879 (1985-02-01), Lucke et al.
patent: 4727006 (1988-02-01), Malinowski et al.
Asea Brown Bovery Aktiengesellschaft
Greenberg Laurence A.
Kalafut Stephen J.
Lerner Herbert L.
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