Battery package with DC to DC converter
First Claim
1. A battery package comprising a casing having therein one cell of a type which is subject to damage by cell reversal, said cell having an anode comprising lithium, a DC to DC converter circuit electrically connected to said cell, and means for electrically connecting the output of said converter circuit to a load, said converter circuit comprising means to substantially prevent current flow through said converter circuit unless a load is connected to the output of said converter circuit, whereby said cell discharges only when the load is connected to said converter circuit, said converter circuit being adapted to provide a voltage output substantially in excess of the voltage of the one cell in said package, and said converter circuit including means to electrically prevent recharging of the cell.
3 Assignments
0 Petitions
Accused Products
Abstract
A battery package having a casing which contains at least one electrochemical cell electrically connected to a DC to DC converter. A pair of electrical connections are located on the casing to electrically connect the battery package to a load. The converter conducts and the cell discharges only when a load is present across the electrical connection.
164 Citations
10 Claims
- 1. A battery package comprising a casing having therein one cell of a type which is subject to damage by cell reversal, said cell having an anode comprising lithium, a DC to DC converter circuit electrically connected to said cell, and means for electrically connecting the output of said converter circuit to a load, said converter circuit comprising means to substantially prevent current flow through said converter circuit unless a load is connected to the output of said converter circuit, whereby said cell discharges only when the load is connected to said converter circuit, said converter circuit being adapted to provide a voltage output substantially in excess of the voltage of the one cell in said package, and said converter circuit including means to electrically prevent recharging of the cell.
Specification