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Advanced Battery Chamber Next

  • Overview of Equipment
  • Features
Strong support of enhanced reproducibility and accuracy for cycle characteristics and life evaluation testing
  • Comes with multi-area temperature control (patent pending) that enables separate temperature control in multiple areas of the test area.
    Reduces temperature deviations caused by battery heat generation during charge-discharge testing, and contributes to 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
  • Optional specimen temperature control of up to 6 channels for fixed control of battery surface temperature during charge-discharge testing.
    This chamber contributes to enhanced reproducibility and accuracy for temperature characteristics testing and constant current load characteristics testing, which require strict control of battery temperature.
  • Outlet temperature control and specimen temperature control can be switched externally, enabling a repeated test sequence of cycle life characteristics testing and temperature characteristics testing in one test area.
Multi-area temperature control
  • The hybrid air conditioning control system (patent pending) separates the test area into different air conditioning areas and controls the air conditioning in the chamber and the different areas.
  • Choose between three or six areas depending on the testing objective.
  • Optional specimen temperature control minimizes gaps between the environment temperature and battery surface temperature.
Figure: Air conditioning structure of multi-area temperature control
Air conditioning structure of multi-area temperature control
Change in battery temperature due to charge-discharge and the effects of individual specimen temperature control
  • One lithium ion battery (40 Ah) each is placed on the top, middle, and bottom levels of the test chamber (40°C), and the batteries are charged and discharged at 1C (40 A).
  • The ADBC-Next performed individual specimen temperature control, and the change in battery temperature was compared to that of the conventional test chamber (conventional test chamber has outlet temperature control).
<Conventional test chamber>
Photo: Conventional test area
ADBC Next
Photo: ADBC Next
<Conventional test chamber>
  • Before starting charging, the temperature of the bottom battery is low, and the heat generation caused by charging increases the temperature more than that of the top and middle levels, creating a difference in heat history between batteries.
  • Maximum temperature fluctuation is 4°C.
Graph
<Multi-area control (3 areas)>
  • Before starting charging and during charging, the difference in temperature between batteries is nearly constant, therefore the heat history between batteries is nearly the same.
  • Maximum temperature fluctuation is 3.4°C
Graph
<Specimen temperature control (3 cells)>
  • There is virtually no deviation to the temperature setting even during charging, and the surface temperature of the batteries remains constant.
  • Maximum temperature fluctuation is 0.3°C.
Graph
Integration of the charge-discharge power supply and test area enables space savings
  • The left and right sides and rear-free construction enable a flexible layout of the test area and charge-discharge power supply.
  • The power supply storage box and power supply installation stand (both optional) can reduce installation space

Figure: Integration of the charge-discharge power supply and test area enables space savings

Supports system upgrade of charge-discharge power supply
  • The power supply installation box and power supply installation stand (both optional) can be used to integrate the charge-discharge power supply and test chamber.
    This creates a smaller installation space.
  • The use of the wire relay module (test chamber rear pass-through) can eliminate wires inside the test chamber.
    Not only does this eliminate factors for interfering with air flow within the test area, it also simplifies battery connection.
    We provide this with a battery installation jig.

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