Application Note: Battery Specific Heat Determination
Batteries are complex objects and the Cp is rarely known. Fortunately, this can be measured in an adiabatic calorimeter again using equation Q = m cp ΔT. Demonstrated in this application note.
Application note: Effect of Mechanical Nail Penetration on Battery Thermal Stability in BTC
Two separate experiments were performed in the Adiabatic Calorimeter Phi-TEC BTC to determine the thermal stability of a 3-battery, Li-ion battery pack. The objective was to compare the stability of the battery when it is complete and undamaged with the result when the batteries were penetrated with a nail.
Application note: iso-BTC Operating Principle
Application note: Runaway Li-ion Battery Explosion
Minimisation of Scale-up Difficulties
This article discusses what chemists and engineers can do in advance, both in the laboratory and kilo laboratory, to prevent or at least minimise scaleup issues. Scale-up of chemical processes, particularly those involving batch or semi-batch manufacture is well-known to be a problematic area of chemistry and chemical engineering, and can be costly when it goes wrong. By correctly choosing and designing the synthetic route to a fine chemical or drug substance, as well as controlling the reaction and work up/product isolation parameters, many of the difficulties in scale up can be avoided. The more complex a process is in terms of chemistry and unit operations, the more there is to go wrong.
Presentation: Battery Safety Testing - Nov 2010, Beijing
A presentation made by Dr J Singh at the 5th International Forum on Li-ion Battery Technology, Beijing, China, Nov 2010, about HEL's advanced Battery Testing Calorimeter (BTC) as a unique solution for both small scale testing of battery components as well as direct simulation of larger scale battery incidents, including the "abuse" testing methods specified by various codes.
Scale Up Of Hazardous Chemistry- With Thermal Runaway Potential
This paper describes (with examples) how with a range of experimental methods and with the correct equipment, it is possible to simulate a thermal runaway. The data produced (with samples less than 100ml) can help prevent potential hazards. (As published in Chemistry Today)
The Design of Safe Chemical Processes
A typical process in the pharmaceutical and related industries consists of a number of sequential steps where a range of carefully selected compounds are allowed to react in order to produce the required product or intermediate. In many cases, the reactions involved are exothermic, and therefore require cooling and careful process control in order to ensure safe operation. In addition, some of the raw materials or products may be unstable and have a tendency to thermally explode under certain operating conditions.