In addition, when charge-discharge testing several batteries installed in the test area at the same time, deviations in temperature uniformity and heat generation of a battery to be cause of changes in the heat history of the batteries, thereby hindering correct evaluation. In an effort to solve these problems, ESPEC applied its long-cultivated environment control technology to develop the Advanced Battery Chamber Next (precision temperature control chamber) with multi-area temperature control.
Specifications & Features:
| Category | Item | Specifications and features |
|---|---|---|
| Performance | Temperature range | -40°C to +100°C |
| Temperature uniformity | ±0.5°C (deviation from temperature setting for central air temperature (total 6 points) for each battery installation area) | |
| Allowable heat load | 500 W (at -20°C with air temperature control) | |
| Dimensions | Inside dimensions (W × H × D mm) |
800 × 790 × 525 (excluding protrusions) |
| Outside dimensions (W × H × D mm) |
1000 × 2196 × 1255 (including protrusions) | |
| Safety Devices | Pressure release vent | φ100mm |
| Options | Specimen temperature control | Applicable temperature range: -20°C to +60°C Allowable heat load: Supports number of specimens and usage temperature range |
| Relay module | Supports no-wiring inside of test area with test chamber rear pass-through method (Standard: φ 100 cable port × 3) | |
| CO2 fire extinguisher | Automatically extinguishes fire after detecting heat or smoke at thermal runaway and stops operation, linkable to intake/exhaust damper | |
| Smoke detector | Uses optical spot detector for efficient detection of smoke during thermal runaway | |
| CO/H2 gas detector | Pump suction type that collects gas generated from battery, 2-stage alert, linkable to intake/exhaust damper | |
| Intake/exhaust damper | Supports forced ventilation of gas inside of the chamber after CO2 fire extinguisher spray, interlock to gas detector |
Features:
- Strong support of enhanced reproducibility and accuracy for cycle characteristics and life evaluation testing
- Strong support of enhanced reproducibility and accuracy for temperature characteristics testing and constant current load characteristics testing
- Multi-area temperature control
- Change in battery temperature due to charge-discharge and the effects of individual specimen temperature control
- Conventional test chamber
- Multi-area control (3areas)
- Specimen temperature control (3cells)
