June2013 battery

Offices in ENGLAND, USA, CHINA, INDIA Representation Worldwide

World Calorimetry BatteryBenchmark Safety and Battery Battery Testing Performance Studies Welcome to THT’s June newsletter of 2013, focusing on calorimetry for battery applications

Large format batteries?

ARC Calorimeters from the Market Leaders and Implementers…

Now a complete range of calorimeters from THT to cover all needs for thermal measurement of large format cells or small modules… Adiabatic and Isothermal. The true ARC ™ technology * first commercialised in 1979 has been manufactured by THT since the mid 1990’s and continues to this day for battery, chemical, explosive, oil and other applications with reactive materials. The ARC calorimeter family is shown here The EV+ and BPC Calorimeters and all their options are now fully developed and available from THT. THT has implemented software for appropriate large power cyclers to give turnkey systems. For the automotive industry cyclers to 100V 200A have been implemented down to, for small batteries, 5V, 5A. First BPC and EV+ units have been shipped and are now being used across three continents. The rapid advancement of larger format Li cells for automotive use has led to need for these large calorimeters.

Download our complete Battery Brochure.

ARC ™ is a trade name of Thermal Hazard Technology and Netzsch and cannot LEGALLY be used by other makers of calorimeters (battery, chemical or other application)

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Testing of batteries and small modules….

Customer needs have been met that include video monitoring and gas collection for onward analysis.

This led to the need for a sealed calorimeter with clear safety release mechanisms. This has been addressed by use of electromagnets.

The measurement of heat profile over the cell surface has been addressed by up to 24 thermocouples monitoring the temperature over the cell surface.

THT EV+ will track at up to 20C/min, not the 2-3C/min from other calorimeters or poor design.

Most challenging and uniquely devised by THT is the need for Nail Penetration at controlled rate within the sealed environment. THT offers a variety of controlled speed high torque units – up to 10cm/sec and 37kN

Gas collection options From collection bags to closed cylinders, THT have a number of options, THT may advise, but the choice is down to the user

Data Yes we supply data:- Tracking and performance of the calorimeter itself and of the options:- Nail penetration, multipoint, specific heat. Contact THT with your specific requests.

User base continues to grow Latest installations include universities in Singapore, China & Canada, major car companies in Germany and Japan, leading battery suppliers in Korea and USA. THT has made the first sale to India for Battery Testing. These have kept Stephen and Danny our two installation engineers very busy.

Support – Yes we support all users by email, phone, Skype freely into the future over the complete life of the instrument.

The LNFO - Liquid Nitrogen Flow Option allows sub zero testing to -50°C 7kVA – the EV+ power supply needs 6000Watts... Why? The larger calorimeters still need robustness and though not as thick as the standard ARC calorimeter – there is a lot of metal to heat.

There is the need to heat at rates to 20C/min.

You cannot have it both ways – either use a calorimeter with too thin walls or apply more power.

Forthcoming Meeting & Exhibitions Advanced Automotive Battery Conference AABC Europe: June 24-28 Strasbourg, France See THT on booth 35 The Battery Show September 17-19 Michigan, USA See THT on booth B1831 3

Š Thermal Hazard Technology 2013 All rights reserved.

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Offices in ENGLAND, USA, CHINA, INDIA Representation Worldwide