AGING TESTING

Apply time pressure early,
Let potential problems arise before delivery

Through 72 hours of controlled cycling and electric immersion, continuous observation of voltage, electrical resistance, SOC, temperature, communication and intermittent failure, capture systems are likely to fail and drift early in stable operation.

Production ageing belongs to Early-Life Screening, instead of 72 hours of full-life validation.

24h

38h

48h

56h

72h

Aging Run

System TC-DEMO-ESS-2608-006

Plan TC-DEMO-ATP-2608-006-R01

Aging batch TC-DEMO-AB-2608-006

Recipe 72h / 6 partial cycles

SOC Window 20–80%

Average Power 0.20C

Status MONITORING IN PROGRESS

Current Window HIGH-SOC HOLD

Next FUNCTIONAL / FAT

72 hours old formulation 15 seconds of routine record.

Pre-treatment and inspection Electricity / Insulation / BMS

0–2h

C1 Charge/ Discharge

C2 20–80%

C3 20–80%

C4 20–80%

C5 20–80%

C6 20–80%

High SOC maintains 80% Hold

38–44h

Low SOC maintained 20% Hold

44–48h

Hot Still / Restore Thermal Soak

48–56h

Continuous monitoring Monitoring

56–72h

Pre-treatment and inspection: The power check, the insulation check, the communication confirmation, the BMS state and the cooling system confirm that the system meets the aging start conditions before it enters the cycle.

Security clearance activated. Interlock Ready

Automatic protection and reduction Insulation Decline / Overtemperature / Overpressure / Communications Abnormal Auto Protection

Auto-stop boundary Safety Boundary

Fifteen Rack Drifting Scan 72h Trend Overview

OCV drift (ΔmV)

Max. Rak SOC drift 0.9%

DCIR change (Δ)

Maximum temperature drift 0.4°C

SOC drift (%)

Increase in systems DCIR 1.8%

Temperature drift (Δ°C)

DCIR Limit ≤3%

Max. SOC drift 0.9%

Maximum temperature drift 0.4°C

System DCIR increment 1.8%

Conclusions Steady trend

Intermediate Incident Observatory 72h Event timeline

0h 12h 24h 36h 48h 60h 72h

Controller Reset

Packet Drop

Sensor Excursion

Protection Event

Thermal Event

Operator Note

Rack 12 NTC Open

Controlled exception: Breaking between the Rack 12 NTC temperature channel (closed)

Event Window NTC Open capture near about 12h

Impact isolation Locks the 12-related temperature channel of the Rack

Corrective measures Check the connection and sensor lines.

24h observation Run on, no triggers again

NCR TC-DEMO-NCR-2608-0091

CLOSED

Thermal Stability Observatory 72h Thermal static / Thermal leaching

0h . Initial state

Maximum: 27.6°C
In/backwater: 18.1 / 20.3 °C

12h Partial cycle

Maximum: 28.6°C
In/backwater: 18.2 / 21.4 °C

24h Cycle Medium

Maximum: 31.4°C
In/backwater: 18.3 / 22.6 °C

38h . Before Gao SOC

Maximum: 33.6°C
In/backwater: 18.5 / 24.1 °C

56h Thermal leaching

Maximum: 34.2°C
In/backwater: 18.6 / 24.8 °C

72h . End of steady state

Maximum: 35.2°C
In/backwater: 18.7 / 25.3 °C

Maximum Temperature 35.2°C

Maximum Rack Temperature 3.9°C

Cool the response. < 8 min

Thermal stability No Sustained Hotspots

Health comparison after ageing Around 72h

72h PRODUCTION AGING / EARLY-LIFE SCREENING — NOT SERVICE-LIFE QUALIFICATION

Indicators	Before you get old.	After aging,	Change	Limit / Trends
Available Energy	5,064.0 kWh	5,028.1 kWh	-0.7%	≥95%
Charge Efficiency	99.0%	99.3%	+0.3%	≥95%
System DCIR	1.342	1.366	+1.8%	≤3%
SOC drift	—	0.9%	—	≤2%
Rack's maximum temperature difference	—	0.4°C	—	≤1.0°C
Communication usability	—	99.998%	—	≥99.9%
Critical protection error triggers	0	0	0	Target 0

Change in DCIR (%)

Changes in available energy (%)

Rack temperature differential (Δ °C)

Communications availability (%)

Early failure and detection The evidence is closed.

Event detection and isolation

Rack 12 NTC intermittent road was captured and isolated.

Root Observation

Check the wiring status of connectors, terminals and sensors.

Correcting and strengthening

Completion of the check-up, re-fixing and necessary corrections.

Targeted monitoring 24h

0 Recurring

Contrast Authentication

Trends are normal

Grounds for release

0 Recurring
Trends are normal
No new proliferation

Allow the next stage.

Aging evidence files Complete storage .

RCP Ageing formulations and plans ATP / Recipe / Batch

CUR Trend curves OCV / DCIR / SOC

1S 1 second trend data Process Trend

100 100 ms capture event Fast Capture

IR Hot pictures. Thermal Evidence

HLT Health comparison Health Comparison

NCR NCR and unusual records Exception Closure

REL Repeat and Release Retest / Release

Release to follow-up functionality and FAT phase End of the ageing phase

Allow the next stage.

✓ The ageing formula is 72 hours complete.

✓ Key drift indicator meets limit values.

✓ Thermal stability does not sustain hot spots.

✓ Controlled anomalies are closed and no recurrence.

✓ The ageing evidence file is complete and traceable.

NEXT
Factional Protection / FAT

Standard and normative basis Production ageing phase

IEC IEC 62933 Series Electricity energy storage systems for System Safety, Performance and Engineering Verification Background.

IEC IEC 62619 / IEC 63056 Industry and storage can apply lithium battery safety requirements as important inputs to the security boundary of the ageing process.

GB GB/T 36276 The power reserves support the safety and performance of the product by requiring lithium ion batteries.

INT Internal ageing program TC-AGING / ATP is controlled, setting 72h formulation, event capture, limit and release rules.

Engineering boundary: This page describes the Early-Life Screening at the production stage. 72 hours of ageing for the detection of early failure, drift and assembly/connection problems should not be interpreted as full life, long-term durability or full life-cycle qualification.