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Battery

Battery Module Qualification

Qualify battery modules prior to pack integration

Battery modules are tested before integration into packs to screen for cell-level defects. A single defective cell, whether from lithium loss, malformed separators, or electrode passivation, can impair the entire module. These defects do not surface in cycler-based charge, ACIR, or DCIR tests.

The Solution:

AccelaGrade Module

AccelaGrade Module enables 100% module coverage with consistent acceptance criteria across vendors and production lots. Defective modules are caught before BMS installation, not after field deployment.

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Second-Life Redeployment for EV Packs

Grade incoming automotive packs before deployment into stationary storage

Used automotive packs are repurposed for stationary storage in microgrids, utilities, and datacenters. Before redeployment, each pack must be assessed for capacity and state of health to determine suitability and expected useful life. Full charge-discharge cycling is the standard assessment method. It takes several hours per module and creates the single biggest throughput ceiling in the operation.

The Solution:

AccelaGrade Module

AccelaGrade replaces the two-step QC process with one. Capacity and internal resistance are assessed together using multi-frequency EIS, in a fraction of the time. More batteries processed per day, lower cost per grade, same quality outcomes.

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Degradation Benchmarking and Diagnosis for Batteries

Traditional EIS gives you sparse, infrequent snapshots. The Pulse Series gives you continuous degradation data.

Understanding why a battery degrades, and how fast, is foundational to cell design, material selection, and lifetime estimation. Traditional studies rely on scheduled manual measurements: disconnect the asset, run a narrowband sweep, record a data point, reconnect. The result is a sparse picture assembled from periodic snapshots. Critical failure modes can onset between measurements and go unrecorded.

The Solution:

The Pulse Series

The Pulse Series produces a continuous impedance record across the full degradation cycle. Use it to evaluate how design choices or operating conditions drive performance loss, validate scale-up from cell to stack, and build the degradation dataset needed for lifetime prediction.

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Incoming Cell Quality Control

Grade 100% of incoming cells before integrating into modules or packs

Pack integrators source cells from third-party suppliers and screen them for batch variability and production defects before assembly into modules or packs. The standard method is sample-based capacity testing on cyclers. It leaves coverage gaps: testing every cell would close them, but cycler throughput makes it economically impractical.

The Solution:

AccelaGrade Cell

AccelaGrade makes 100% incoming cell coverage economically viable. Test every cell, not just a sample, at lower cost per cell and without facility upgrades.

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Remanufacturing for Motive and Micromobility

The economics of remanufacturing depend on testing speed.

Remanufacturing keeps working batteries in service: identify the failed cells, swap them out, rebuild the pack. It works for forklifts, scooters, and other motive and micromobility formats whose packs are designed to be opened. What kills the business case is testing time. Cell-by-cell capacity testing on cyclers takes hours. When testing costs approach the cost of a new pack, remanufacturing stops making financial sense.

The Solution:

AccelaGrade Cell

AccelaGrade shifts the economics: shorter test times mean lower labour, lower energy costs, and a smaller footprint than a cycler bank. 100% cell coverage becomes practical rather than prohibitive.

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Hydrogen

Stack Failure Analysis and Post-Field Forensics

The difference between user error and manufacturing defect can be millions of dollars.

When an electrolyser stack returns from the field or underperforms in service, EIS is used to identify the failure mode and location across every cell without disassembly.

The Solution:

The Pulse Series

The Pulse Series maps impedance across every cell in the stack, separating membrane degradation, contamination, flooding, and contact failures without taking the stack apart. Use the data to resolve warranty disputes on objective grounds, classify whether the failure requires operational or design changes, and feed findings back into future builds.

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Degradation Benchmarking and Diagnosis for Hydrogen

Traditional EIS gives you sparse, infrequent snapshots. The Pulse Series gives you continuous degradation data.

Product development teams run durability tests and lifetime studies on fuel cell and electrolyser stacks to understand how membrane, catalyst, and interfacial performance changes over time. Each degradation mechanism has a distinct electrochemical signature. Standard approaches rely on scheduled manual measurements at fixed intervals, leaving gaps where critical failure modes can develop unrecorded.

The Solution:

The Pulse Series

The Pulse Series produces an ongoing impedance record that separates membrane resistance, charge transfer, and mass transport degradation contributions. Use it to benchmark stack builds, identify which operating conditions accelerate decline, and build the dataset needed to support durability guarantees.

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Detect Electrolyser Stack Defects and Prevent Quality Escapes

A quality escape can cost more than the sale price of the stack itself.

Most electrolyser stack defects go undetected until the customer runs a full-power SAT on-site. By then, the stack must be repaired in the field or returned under warranty. Full-power end-of-line testing catches these defects but requires dedicated hydrogen handling infrastructure, high electrical load capacity, and significant time per stack. Most manufacturers ship without it.

The Solution:

The Pulse Series

Run EIS at OCV on every stack before it ships. The Pulse Series surfaces the defects that escape standard QC protocols: electrode assembly faults, membrane contamination, contact resistance issues, and cell-to-cell uniformity faults. No full-power testing infrastructure required. Protect your warranties and your customer relationships.

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