×

High-power ultracapacitor energy storage pack and method of use

  • US 7,218,489 B2
  • Filed: 09/28/2004
  • Issued: 05/15/2007
  • Est. Priority Date: 10/04/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. An ultracapacitor energy storage cell pack, comprising:

  • an ultracapacitor assembly including a plurality of series connected ultracapacitors and balancing resistors, each balancing resistor connected in parallel with each ultracapacitor to automatically balance each ultracapacitor over time, thereby automatically over time discharging the ultracapacitors of the ultracapacitor assembly;

    an enclosure to enclose and protect the ultracapacitor assembly;

    a controller for the ultracapacitor assembly; and

    one or more temperature sensors to monitor temperature of the ultracapacitor assembly and coupled to the controller; and

    GFI sensor monitoring for a ground fault interrupt condition of the ultracapacitor assembly, and coupled to the controller.

View all claims
  • 12 Assignments
Timeline View
Assignment View
    ×
    ×