System for electro-magnetic induction spectroscopy (EMIS) of battery cells while forming and cycling
AssigneeGM Global Technology Operations LLC
InventorsErik Damon Huemiller, Ryan Curtis Sekol, Shaomao Xu, Duane S. Carper, Nahel Eshaq, Raffaello Ardanese
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Abstract
A system for testing a battery cell includes a test fixture configured to enclose the battery cell, a battery cycler configured to alternately charge and discharge the battery cell, an antenna mounted on a surface of the test fixture, the antenna configured to detect an electromagnetic signature of the battery cell and generate a signal indicative of the electromagnetic signature, and a detection module configured to receive the signal and detect characteristics of the battery cell based on the signal.
Claims20
A system for testing a battery cell, the system comprising:
- a test fixture configured to enclose the battery cell;
- a battery cycler configured to alternately charge and discharge the battery cell;
- an antenna, separate from the battery cell, mounted on a surface of the test fixture, the antenna configured to (i) detect and measure an electromagnetic signature of the battery cell while the battery cell is being alternately charged and discharged by the battery cycler and (ii) generate a signal indicative of the electromagnetic signature as detected while the battery cell is being alternately charged and discharged by the battery cycler;
- and
- a detection module configured to receive the signal, analyze the electromagnetic signature of the battery cell as indicated by the signal, and detect characteristics of the battery cell based on the electromagnetic signature.
A system for testing a battery cell, the system comprising:
- at least one test fixture, wherein the at least one test fixture is configured to enclose the battery cell, and wherein the at least one test fixture includes a bottom plate,
- a top plate mounted on and spaced apart from the bottom plate,
- an antenna, separate from the battery cell, mounted on an upper surface of the bottom plate, and
- the battery cell, herein the battery cell is arranged within the test fixture on the bottom plate such that the antenna is located between the battery cell and the bottom plate;
- a battery cycler configured to alternately charge and discharge the battery cell, wherein the antenna is configured to (i) detect and measure an electromagnetic signature of the battery cell during the charging and discharging performed by the battery cycler and (ii) generate a signal indicative of the electromagnetic signature as detected while the battery cell is being alternately charged and discharged by the battery cycler;
- and
- a detection module configured to receive the signal, analyze the electromagnetic signature of the battery cell as indicated by the signal, and detect characteristics of the battery cell based on the electromagnetic signature.
Dependencies are inferred from the claim text.