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To implement tests with larger batteries THT have developed the EVx ARC

The EVx calorimeter is necessary for larger batteries, modules and small packs, power tools, satellite, military and associated applications. The EVx calorimeter is rugged and is sited in a secure containment vessel.

Within the containment vessel the standard ARC calorimeter (as in ES-ARC) can be used and this is regularly supplied for "Double Systems". Such a system gives versatility capable of measuring:- small prismatic, coin cell, 18650 and other larger batteries used in power applications.

With the EVx system all safety tests can be carried out as well as Battery Performance studies.

Specification

Chamber dimensions: 25cm diameter x 60cm depth; Depth increased to 80cm with collar

Temperature range: Ambient* to 350°C

Thermocouple specification: N; Resolution 0.001°C

No. of heaters: 8

Pressure measurement range: 0-30 bar

Sensitivity: 0.02°C/min

Control modes: Adiabatic, Ramping, Isoperibolic, Step Isothermal

Dimensions (L x W x H): Electronics Unit 55cm x 60cm x 107cm; Blast Box 167cm x 105cm x 116cm; Tall Blast Box (when used with collar) 167cm x 105cm x 136cm

Features

? Designed for long format cells (blade format).

? Calorimeter choice: Standard, EVx and EV+.

? Sample range: components (standard calorimeter) to EV batteries (EVx calorimeter).

? Separate electronic cabinet with top opening blast box for calorimeter with fume extraction.

? For even larger batteries the EVx collar can accommodate cells up to 80cm depth. A taller EBE blast enclosure is also available.

? Blast enclosure volume: upto 2.38m3 with tall EBE.

Options

·    OSU

·    CPU - Automatic specific heat capacity measurement

·    ICU - Integrated single channel battery cycler

·    SSS - Single sample gas collection during or after test into collection vessel

·    SSU - Gas collection, multi samples

·    MPO - Multipoint thermocouple for spatial distribution measurement

·    P-NPCO - Pneumatic nail penetration and crush

·    CS-NPCO - Controlled speed nail penetration crush option

·    RDCS - Rapid data collection system

·    LNFO - Liquid nitrogen flow for low temperature application

·    UPS - Maintains operation in the event of power failure