Temperature Chamber for Charge/

Discharge Testing

BTC series

Provides safety and security, which is essential for testing the
charge and discharge of rechargeable batteries.

As batteries become increasingly high capacity for the full-scale use of EVs, further safety is required in preparation for emergency events during charge/discharge tests. This temperature chamber is specially designed for rechargeable battery charging and discharging applications and can be tested safely and reliably.

Test category(cell tests)
  • Charge/discharge test
  • Storage test
Test category(module and pack tests)
  • Charge/discharge test
  • Storage test

Features

Equipped with various safety functions as standard.
Protecting customers and surrounding equipment.

We designed and set the chamber strength and safety functions through explosion experiments using actual batteries.
The pressure relief vent adopts a large size of 300 x 700 mm, which can quickly release the pressure inside the chamber in the event of an event and reduce damage to the chamber. This is our first chamber to use a toggle clamp latch to securely lock the door with the ease of operation and no compromise in safety. BTC, designed with ease of use and safety in mind.

Long-term continuous operation possible with frost-free function.

Charge/discharge tests are generally performed in a temperature environment of 0°C to +40°C. Equipped with a frost-free function that enables long-term continuous operation of +10°C or higher, frost on the refrigerator is prevented and continuous operation is possible without interrupting the test.

Selection of air flow direction minimizes temperature difference between batteries.

At the time of purchase, you can select the airflow from "horizontal" or "vertical," depending on the shape and quantity of the cells and how you set them in the chamber. Rechargeable battery performance and characteristics are susceptible to temperature. Therefore, you want all cells under test to be touching the airflow as evenly as possible to keep the temperature difference among cells to a minimum.
The airflow orientation selection would allow exactly that.

Improved layout freedom with the charge / discharge test system.

Cable ports for drawing cables from the charge / discharge test system into the chamber are standard equipped on the back side(φ100 mm x 4) and the left and right sides (W400 x 100 mm x 1 each).
Therefore, free layout with the charge / discharge test system is possible.
In addition, the floor load capacity in the chamber is 300 kg, which is strong enough to install jig for battery installation and a large number of batteries.

Improved customizability

Standardized options for functions frequently adopted in charge/discharge chambers for rechargeable batteries.
The operation logic of the safety function is also standardized, so you can select it safely even when it is introduced for the first time.
It is also available with optional retrofitting after delivery, enabling flexible response when changing the type and conditions of the batteries to be tested.

Movie

Specifications

Lineup of two models with different internal volumes

Model BTC-560Hb1 BTC-560Vb1 BTC-1120Hb1 BTC-1120Vb1
Airflow direction Airflow in horizontal direction Airflow in vertical direction Airflow in horizontal direction Airflow in vertical direction
Temperature range - 40℃ to +100℃
Temperature
change rate
Temperature range - 26℃ ⇔ +86℃
Heat-up rate 2.1K/min
Cool-down rate 2.2K/min
Air temperature deviation 1.5℃ 2.5℃
Allowable heat load 1750W(stabilized at +20℃) 3000W(stabilized at +20℃)
Capacity 560 L 1120 L
Internal dimensions W800 × H1000 × D700 mm W1600 × H1000 × D700 mm
External dimensions *1 W1250 × H2195 × D1406 mm W2050 × H2195 × D1406 mm
Refrigerant R449A
Breaker capacity AC200V  3 φ  30A AC200V  3 φ  50A
Weight 650 kg 1200 kg

*1 Partial protrusions not included.

Standard Eequipment

  • Cable port
  • Door lock
  • Large size pressure-relief vent
    (700×300 mm)
  • Frost-free function
  • Reinforced test area floor(300kg)
  • Emergency stop switch
  • 3-color status indicator tower
  • External input/output terminal
  • Sheathed heater
  • Ethernet port(LAN)

Options (Safety devices)

  • Electromagnetic door lock
  • Air supply/exhaust damper
    (with or without exhaust fan)
  • CO2 fire extinguisher
  • Gas detectors
    (H2, CO, Hydrogen sulfide)
  • Smoke detector
  • Door chain
  • Thermal detector
  • Specimen thermal detector
  • Flameproof rubber

Other Options

  • Viewing window
  • Power supply(400 V, 380 V, 220 V)
  • Water-cooled refrigeration circuit
  • Heavy-load shelf and shelf bracket
    (Load capacity 50 kg)
  • Heavy-load shelf and shelf bracket
    (Load capacity 100 kg)
  • RS-485/RS-232C communication function
  • Anchoring fixtures