Electrical Testing TRIZ Cases

Partial correlation matrices and sparsity regularization detect early secondary battery failure without large cumulative data storage.

Electrical impedance spectroscopy with DRT reveals mechanical damage in lithium-ion cells within seconds without destructive inspection.

Using one battery sample as a reference, this case calibrates AC resistance deviations across measuring devices for more consistent battery data.

Uniform stack pressure and a metallic hermetic seal let solid-state batteries be tested across wide temperatures outside a glovebox.

Early-cycle current and voltage features classify battery cells by degradation pattern to predict lifespan without 300-cycle testing.

A dual-wavelength thermoluminescent fiber probe measures battery temperature and electrode lithiation at once for more accurate SOC estimation.

Current and voltage features group battery cells by degradation behavior, enabling lifespan estimation without 300 discharge cycles.

By driving inductor current below zero, this control scheme keeps a DCDC converter in CCM across a wide current range and avoids DCM/CCM transitions.

Side-surface holding members secure wafers during failure analysis conveyance without blocking probe card touch down or back-side imaging.

AC excitation through a DC/DC converter enables real-time fuel cell SoH estimation from in-operation voltage-current and impedance data.

Frequency-dependent polarization impedance tracks battery diffusion states, enabling aging-aware EV pack power limits and safer charge-discharge control.

A particulate-binder adhesive layer keeps battery separators bonded to electrodes without blocking during winding, improving alignment and short-circuit safety.

A recessed connector housing in the wiring board cuts thickness while preserving battery monitoring accuracy and reducing reinforcement needs.

A thermoluminescent fiber-optic probe separates temperature and lithiation signals by wavelength to estimate battery SOC more accurately.

An internal conductive path routes cathode sensing to the anode side, reducing stack contact points and simplifying voltage monitoring.

Wireless pre-testing shifts part of battery inspection off the test station, cutting cycle time while preserving coverage through combined wired and wireless tests.

Cloud-linked battery inspections classify and relabel recycled cells across time points, cutting analysis effort while improving sorting accuracy.

Voltage logging is split into easy and difficult data so separate models can estimate battery cell capacity more accurately and efficiently.

OCV-based FCC correction in the steep SOC-OCV region improves coulomb-counting battery SOC estimation by reducing drift from current and state errors.

Sensor-fed physics and ML models update battery state estimates in real time to improve SOH, SOC, and anomaly detection.

Recovery-state voltage measurements capture battery cell differences for more accurate matching and authenticity checks in packs.

An elastic probe and guide pillars replace sliding friction in battery test sockets, reducing connector wear, finger injuries, and repeated plugging damage.

Measuring auxiliary drive current during spring charging reveals switchgear drive faults in normal operation and triggers timely maintenance.

Lower-level node displacement data is used to predict battery swelling and breakage risk early, enabling control before structural damage.

Multi-temperature EIS reveals lithium plating from Nyquist plot shifts, enabling fast non-destructive battery diagnosis.

Thermal plates and controlled pressure stabilize secondary cell inspection, enabling faster contaminant detection without aging delays.

Voltage difference data from constant-current charging screens echelon-use batteries faster and more accurately than full charge-discharge tests.

Adjustable dual-gain amplification lets a magnetic current sensor keep precise current output while detecting overcurrent events quickly.

Fused voltage, capacity, and cycle-based scores detect Li-plating non-destructively during battery charge-discharge operation.

Multiple temperature sensors placed at different distances and heights standardize thermal propagation testing for battery materials.

Magnetic fixation and flexible contact elements simplify battery stack sensor mounting while maintaining secure, accurate cell monitoring.

Stored charge state and wake-up no-load voltage are combined to correct polarization error and improve battery SoC initialization after short rest.

Flexible printed boards with branched terminals track battery cell expansion and contraction to keep voltage monitoring reliable in compact packs.

Synchronous cell voltage and current capture during traction switching enables in-situ EIS diagnostics without disconnecting the battery.

Compares modeled and measured battery temperatures to warn of overheating earlier, even before sensor readings exceed normal ranges.