Patent ID: 9564768
Date: 2017-02-07
CPC Classifications: G01R,H01M,H02J,Y02E

Claim:
1. A discharge device for an electricity storage device that, by flowing a discharge current through a load resistor connected between a positive electrode of an electricity storage device and a negative electrode thereof, discharges the electricity storage device and measures a condition of the electricity storage device, the discharge device comprising: a discharger capable of switching a resistance value of the load resistor; and a controller that, based on a voltage of the electricity storage device, adjusts the discharge current by switching the resistance value of the load resistor; wherein the controller comprises a voltage measurer that measures a voltage between the positive electrode of the electricity storage device and the negative electrode thereof, and based on the voltage measured by the voltage measurer, determines the resistance value of the load resistor and automatically performs switching such that a current flows such that a polarization value in a polarization curve of the electricity storage device becomes greater than a certain value.