Booting up
Battery cell
Deep Battery Certification

Beyond the
Health
Score.

TRΔCE reads the hidden condition of a battery in a single measurement, no history required, and turns it into a mechanism-level certificate with an honest confidence score. Built for the decisions where the answer carries money, risk, or legal weight.

EU BAT. REG. 2023/1542
PASSPORT COMPLIANT
ONE MEASUREMENT SESSION→ PHYSICS-BASED SIGNAL FIT→ MECHANISM ATTRIBUTED→ HIDDEN STATE MODELLED→ CONFIDENCE SCORED→ GRADE ISSUED→ SIGNED CERTIFICATE· ONE MEASUREMENT SESSION→ PHYSICS-BASED SIGNAL FIT→ MECHANISM ATTRIBUTED→ HIDDEN STATE MODELLED→ CONFIDENCE SCORED→ GRADE ISSUED→ SIGNED CERTIFICATE·
THE DEPTH GAP

Fast screeners triage. Some decisions need a referee.

The moments that need a deeper answer:

Is this battery worth underwriting?
What mechanism is driving degradation, not just how much?
Does the worst cell in this module gate the whole string?
How confident should this certificate really be?
What does the evidence actually support, and where does it stop?
AMPERIQ PRODUCT
TRΔCE

Every claim earns
its way up.

TRΔCE moves from evidence to decision in one direction only. Nothing is claimed until it has been earned by what came before it.

Governing principle: assessment confidence cannot exceed evidence quality.

01 · MEASURE
See the evidence
One test session captures everything TRΔCE needs, how the battery behaves under load. No history, no telemetry, no BMS log required.
02 · INFER
Understand the mechanism
Physics-based models translate the raw measurement into the actual cause of degradation, not just how much capacity is gone, but why.
03 · DECIDE
Reach a grade you can trust
The same evidence is tested against the rules of your application, resale, insurance, second life, to produce a grade with a stated confidence level.
04 · EXPLAIN
Read it in plain language
One certificate speaks to operators, engineers, and auditors alike: signed, traceable, and ready to sit inside a battery passport.
Battery electrode microstructure showing degradation mechanisms
Loss of Active Material
Resistance Growth
Lithium Inventory Loss
Interfacial Degradation
Diffusion Limitations
MEASURE Single Session PHYSICS Signal Fit INFER Hidden State DECIDE Grade EXPLAIN Certificate
MEASURE → PHYSICS → INFER → DECIDE → EXPLAIN
MEASURE
Single Session
↓
PHYSICS
Signal Fit
↓
INFER
Hidden State
↓
DECIDE
Grade
↓
EXPLAIN
Certificate
HOW TRΔCE WORKS

One hidden state.
Every answer
built from it.

Every number TRΔCE reports, health, grade, confidence, comes from the same underlying model of the battery's true condition: what we call the Battery State Posterior. Rather than a single guess, it's the full range of internal states that remain consistent with what was actually measured. How wide that range is tells you exactly how much to trust the answer.

Grounded in Physics
Every measurement is interpreted through validated battery models, not pattern-matching. Every fit is checked, and its error reported, always.
Every Number Has a Source
Nothing is guessed. Each figure in a report is labelled by where it came from, measured directly, computed from physics, or put into words, so you always know what to trust.
Confidence That Means Something
The less certain the evidence, the lower the score, automatically. Confidence can never be inflated by adding more assumptions.
Honest Limits
Every certificate states exactly what it can and cannot conclude. TRΔCE tells you when it doesn't know, rather than guess.
TRΔCE ASSESSMENT

A screener sees one number, twice.
TRΔCE explains why each cell got there, weighs how sure it is,
and turns that into a grade you can act on.

MECHANISM ATTRIBUTION

Two cells.
Same SOH.
Different grades.

CELL A — GENTLE AGING
78%
STATE OF HEALTH
MECHANISM
Mostly lithium inventory loss (61%)
LIKELY CAUSE
Calendar-style aging · 58% likelihood
RESISTANCE RISE
+42% above fresh
CONFIDENCE SCORE
84 / 100
TRΔCE GRADE
Grade A for stationary storage. Strong margin, high confidence.
CELL B — HIGH-STRESS AGING
78%
STATE OF HEALTH
MECHANISM
Mostly electrode material loss (81%)
LIKELY CAUSE
Fast, high-power charging · 47% likelihood
RESISTANCE RISE
+89% above fresh
CONFIDENCE SCORE
71 / 100
TRΔCE GRADE
Grade C for stationary storage. Wider spread, worth a second look.
BUILT ON EVIDENCE

A grade. With
its confidence.

Not a black-box score. Every field carries a source tag: Measured, Computed, Rule-based, or AI-narrated. Confidence isn't a separate marketing number, it's calculated directly from how well the evidence agrees with itself, and printed with exactly what it does and doesn't cover.

01
One session
HPPC, CSV, MAT or XLSX
02
Physics infers
Fits the signal, finds the mechanism
03
Rules decide
Tested against your application's requirements
04
Certificate issued
Signed, full evidence chain
trace@assess:~$ python run.py --cell NCA-18650-Samsung-ICR26J-C460 --tier 2
VALIDATED, WITH ITS SCOPE STATED

Proven on
real cells.

Every number here is measured on physical cells, and stated with exactly what it does and doesn't yet cover. Broader chemistries and datasets are in active validation.

Tracks aging precisely
Spearman ρ
1.000
24 aging checkpoints · 3 lab cells · one chemistry, one protocol
Block 0 — fresh
Block 23 — aged
Samsung ICR18650-26J · ~460 cycles · Turku TUAS
Capacity fade detected
Single session
28.4%
2.55 Ah fresh → 1.82 Ah aged · R₀ rise +85.5%
Capacity remaining
71.6%
R₀ rise vs fresh
+85.5%
No prior BMS data required · One measurement session
Grounded in research
Every threshold cited
8
Peer-reviewed studies behind every score and end-of-life threshold
Vetter et al. 2005 · J. Power Sources
Birkl et al. 2017 · J. Power Sources
Han et al. 2019 · eTransportation
+ 5 further DOIs
EOL thresholds: USABC 1996 · Canals Casals 2019
WHO IT'S FOR

The moments where
depth is worth paying for.

SECOND LIFE
DIRECT BUYER
Second-Life Integrators
Deep certificates at re-passporting and underwriting-grade moments. The escalation path when a fast screener's answer isn't enough to act on.
››
INSURERS
DIRECT BUYER
Insurers & Verification Bodies
Underwriting-grade evidence and audit-trail documentation for high-value modules, where the decision itself carries financial risk.
››
DISPUTES
REFEREE MOMENT
Warranty & Dispute Parties
Independent deep assessment when parties disagree. OEMs, importers, and fleet operators at resale and audit events.
››
TEST LABS
CHANNEL
Fast Screeners & Test Labs
TRΔCE as an escalation layer or licensed software on hardware you already own. The independent grade a marketplace cannot issue for its own listings.
››
STEP 1
MEASURED
Raw voltage, current, capacity from test data
STEP 2
COMPUTED
Health figures computed directly from the measurement
STEP 3
RULE-BASED
The grade, and exactly how confident TRΔCE is in it
STEP 4
AI-NARRATED
Plain-language summary, limited to what's already established

Assessment confidence
cannot exceed evidence quality.

This is the principle behind every certificate TRΔCE issues. The physics and the rules decide what's true. Language, including anything AI-generated, only describes what's already been decided. It never gets a vote.

WHAT DEPTH DELIVERS
Mechanism Attribution
Most tools tell you how degraded a battery is. TRΔCE tells you why, breaking degradation down into its underlying causes, each backed by a number, not a guess.
Distributional Grading
Batteries fail at their weakest cell, not their average. TRΔCE grades the full spread across a module, so one bad cell can't hide behind a healthy-looking mean.
Calibrated Honesty
Every certificate states exactly how confident TRΔCE is, and why. That confidence score is itself continuously checked against real outcomes, so it can be trusted like any other measurement.
Hardware-Agnostic Software
TRΔCE runs on the testing equipment you already own. No proprietary hardware to buy, no new lab to build. Any facility with a cycler can start certifying today.
GET STARTED

One measurement.
A certificate
that shows its work.

1.
Tell TRΔCE what you're testing
Cell, module, or pack, and what you need the grade for. A battery destined for resale and one destined for grid storage are graded differently, because the requirements are different. Works with data from whatever cycler you already have.
2.
Physics infers the hidden state
Physics-based models turn the raw measurement into a picture of what's actually happening inside the battery, and how sure we can be about it. No AI makes this call. Every figure is labelled by where it came from.
3.
Receive a graded, confidence-scored certificate
A signed certificate: health score, grade, and a confidence score that says exactly how much to trust it, and why. Ready to sit inside a battery passport.
One measurement session · No prior history required · EU Battery Passport ready
TRΔCE — BOL cell assessment, Score 0.0
TRΔCE — EOL cell assessment, Score 95.0
EU BATTERY PASSPORT READY
TRΔCE app
ABOUT AMPERIQ

Deep battery certification
for the circular energy economy.

AmperIQ builds software for the battery decisions where the answer carries money, risk, or legal weight.

TRΔCE, our first product, is the deep certification layer above fast screening tools. One measurement session. A mechanism-level, confidence-scored assessment for the batteries where a quick score isn't enough: high-value modules, disputed lots, and anything a screener leaves undecided.

We hold to one governing principle: assessment confidence cannot exceed evidence quality. Every claim TRΔCE makes states what the evidence supports, and where it stops.

THE BATTERY PASSPORT GAP
2027
EU BATTERY PASSPORTS BECOME MANDATORY, 18 FEB 2027. TRΔCE'S SIGNED, CONFIDENCE-SCORED CERTIFICATES SLOT DIRECTLY INTO THAT DOCUMENTATION CHAIN
AmperIQ
Early access launching Q3 2026