Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1990-09-27
1991-08-06
Stephan, Steven L.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 15, 320 22, 320 23, 429 96, 429100, 429 99, H02J 700, H01M 1014
Patent
active
050380931
ABSTRACT:
A charger for charging a rechargeable electrochemical cell including: a first conductive terminal having a central opening therein and a first contact end, the first conductive terminal connected to circuitry capable of providing charging current at a first charging rate; and a second conductive terminal positioned within the opening, the second conductive terminal having a second contact end portion extending outwardly from and electrically insulated from the first contact end, the second conductive terminal connected to circuitry capable of providing charging current at a second charging rate. The charger may have an insulator with an insulating contact end portion in place of the second conductive terminal having a second contact end portion. Also, a rechargeable electrochemical cell for use with a charger including: conductive flexible positive and negative plates; the cell having a top end with a perimeter and a bottom end electrically connected preferably to the negative plate; an annular charging contact seat integral to and protruding outwardly from the top end and located on the top end away from the perimeter; and the charging contact seat in electrical connection with the positive plate. Additionally, combinations of a rechargeable electrochemical cell and a charger therefor are included.
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