Hioki

Batteries

Our products are widely used in the evaluation, materials development, shipping inspections, maintenance, and reuse of secondary batteries such as lithium-ion batteries.

Typical setting
A cell line at shipping inspection, a materials lab, an ESS container in the field, a second-life grading bench.
Product groups
8
Measurement locations
4

Which cells are good, which are drifting, and can you tell in the time the line allows?

These are the measurements that decide the answer, and the ones most often taken badly.

  • Internal resistance in the milliohm and microhm range, measured through contact resistance that is larger than the signal.

  • Sorting speed at shipping inspection where every extra second is a unit of capacity.

  • Grading used cells for reuse when their history is unknown.

  • Electrode and electrolyte materials characterized by impedance rather than by guesswork.

Where the measurements are taken

Internal resistance and open-circuit voltage

Battery / ESS

A cell degrades in its internal resistance long before it degrades in its voltage.

Battery Testers

Component impedance at the working frequency

Production line

A part in tolerance at 1 kHz can be out of tolerance where it will actually be used.

LCR Meters, Impedance Analyzers, Capacitance Meters

Withstand voltage, insulation and leakage current

Safety test bench

The test that decides whether a finished product is allowed to leave the building.

Electrical Safety Testers, Hipot / Insulation / Leakage Testers

Temperature and humidity over long periods

Environment

An electrical drift with no recorded temperature beside it is a number without a cause.

Data Loggers

Instruments used in batteries

Bring us the batteries measurement you are stuck on.

Describe the installation and the quantity. We will say which instrument group measures it and what the measurement actually needs to resolve.

Open the full enquiry form

An engineer replies with ranges and methods, not a brochure.

What has to be true inside the company

Four criteria of innovation, and the reason a measurement can be trusted outside it.

Increasing customer value

Production system

A production system built so that a measurement need turns into a delivered, calibrated instrument without the customer absorbing the delay.

Delivering peace of mind to customers

After-sales service

An instrument is only as good as the number it still reports in year five. After-sales service exists to keep that number trustworthy.

Pursuing productivity and precision

Manufacturing capabilities

Precision is a manufacturing capability before it is a specification. It is held in the process, not promised in the catalog.

Creating new customer value

Collaborative development of new products

When a field has no instrument for the quantity it needs to see, the instrument gets developed with the customer who needs it.