Patent ID: 11909009
Assignee: LG ENERGY SOLUTION, LTD.
Field: Measurement (Instruments)
Classification: CPC H  G  Y | IPC G  H

Claim 0:
1. A battery safety test device, comprising:
an electronic switching element;
a mechanical switch element having a first end connected to either a battery positive electrode or a battery negative electrode and a second end connected to the electronic switching element,
wherein the electronic switching element has a first end connected to the mechanical switch element and a second end connected to the other of the battery positive electrode or the battery negative electrode;
a voltage sensor configured to measure a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and
a current sensor configured to measure a current of the battery after the mechanical switch element and the electronic switching element are turned on;
a waveform calculator configured to calculate a voltage and current waveform of the battery using values measured by the voltage sensor and the current sensor after the mechanical switch element and the electronic switch element are turned on;
a reader configured to determine a safety of the battery using the voltage and current waveforms calculated by the waveform calculator; and
a variable resistor connected directed to either the battery positive electrode or the battery negative electrode and connected directly between the battery and the electronic switching element.