EN - BATTERIES
13Pages

THERMAL ANALYSIS & CALORIMETRY SOLUTIONS • THERMAL SAFETY • • THERMAL STABILITY • • HEAT CAPACITY • • CHARGE/DISCHARGE HEAT • • SELF-DISC

YOUR CHALLENGES Batteries are essential power sources for every application from your new smartphone, to the development of electric vehicles, Internet of Things (IoT) and Industrial Internet of Things (IIoT). As the development of these new technologies is linked with the autonomy of devices, one key element which makes a great difference is their battery. The demand for new, more powerful, higher energy density and faster charging batteries is growing quickly. In addition, so are the requirements for new materials and thermal safety testing. Thermal analysis and calorimetry, including...

CUSTOMER TESTIMONIAL "We chose the C80 due to its multi-modes and availability to use large number of specialized cells for a wide range of applications. There is the possibility of direct heat capacity measurements of solid materials in a wide temperature range. Also C80 has a possibility to use gas circulating cells (to work in controlled atmospheres). It will be used for measurements of specific heat capacity, phase transition temperatures and heat effects in lithium nickel dioxide material." Mr. Oleg Bolotov - Scientific-research electrodynamics laboratory, LLC ”Proton-21” THE KEP...

THERMAL STABILITY INSTRUMENT THEMYS ONE HIGH SENSITIVITY BALANCE FOR THE DETECTION OF SMALL MASS VARIATIONS specifically designed for TGA analysis. CONVENIENCE OF ONE FURNACE to reach temperatures as high as 1600°C. PLUG AND PLAY INTERCHANGEABLE RODS to perform TGA only, TG-DSC, TG-DTA, and 3D high sensitivity/Cp measurements. EXTERNAL COUPLING CAPABILITY including evolved gas analyzers SPECIFICATIONS Temperature range (°C) Isothermal and temperature scanning (°C/min) Evolved gas analyzers (FTIR, MS, GCMS, MS-FTIR, or FTIR-GCMS) for performing qualitative and quantitative gas...

APPLICATION THERMAL STABILITY OF ANODE MATERIALS COMPARED BY TGA INTRODUCTION In the field of battery materials characterization, TGA is primarily used to determine the thermal stability of materials used to make cathodes, anodes, electrolytes or separators. TGA will measure the temperature at which a mass loss is detected, which corresponds to the temperature of decomposition of the material. For instance, different cathode materials tested using the same conditions can thus be compared in terms of their stability against thermal decomposition. • Instrument: LABSYS evo TGA 1600 • Sample :...

THERMAL STABILITY / HEAT CAPACITY CHARGE-DISCHARGE HEAT / SELF-DISCHARGE HEAT INSTRUMENT CALVET ISOTHERMAL OR TEMPERATURE SCANNING MODES for increased flexibility HEAT MEASUREMENT ACCURACY with Calvet 3D sensor capturing 93-95% of all heat forms. The highest level on the market CONVENIENT, INTERCHANGEABLE CELLS to perform even the most demanding experiments using one instrument : • Heat capacity and Self-discharge with standard cells • Thermal stability with pressure measurement cells • Charge / discharge with cells allowing the use of electrical wiring and connections to battery cycler...

APPLICATION THERMAL STABILITY OF AN ELECTROLYTE UNDER TEMPERATURE SCANNING CONDITIONS SCANNING CONDITIONS INTRODUCTION When the temperature of a Li-ion battery increases because of abusive conditions (e.g., short circuit, overcharge, heating) self-heating may be initiated. Various exothermic and endothermic reactions involving both the solution and the electrodes can occur inside the battery. The CALVET calorimeter is used with high pressure stainless steel vessels to study the thermal stability of several commonly used organic solvents and electrolytes and to investigate the kinetic...

APPLICATION MEASUREMENT OF THE HEAT CAPACITY OF A FULL BATTERY INTRODUCTION Heat capacity measurements of a battery, together with additional measurements of heat source factors and heat transfer coefficients using other techniques, makes the calculation of the battery’s temperature rise possible as well as to compare calculations with measured values. • Instrument: CALVET. • Vessel : Standard stainless steel vessel. • Sample : A commercially available, cylindrical lithium-ion battery. • Method: A temperature ramp from 20 to 90°C at 0.4°C/min. The heat capacity of the cell can be...

APPLICATION MEASUREMENT OF THE HEAT PRODUCED BY A BATTERY WHEN IT IS CHARGING/ DISCHARGING INTRODUCTION Isothermal calorimetry can measure the heat produced when a rechargeable battery is charged and discharged. The idea here is to assess the risks of damage to the battery if overheating occurs. The battery is connected using thin wires to an electrical cycling system before being placed in the sample holder. EXPERIMENT • Instrument: CALVET. • Vessel : Customized vessel • Sample: Cylindrical Li-ion batteries, State of Charge ranging between 50 and 90%. Stored between 436 and 652 days....

APPLICATION SELF DISCHARGE OF LITHIUM BATTERIES INTRODUCTION Self-discharge is a phenomenon in batteries in which internal chemical reactions reduce the stored charge of a battery even if the battery isn’t used. Measurement of the heat flow of a battery during its self-discharge thus helps compare its capacity to stay charged during long periods of time versus other batteries. The method of measurement of self-discharge heat using an isothermal calorimeter consists of placing a sample holder containing a battery in the reference side of the calorimeter where the selfdischarge heat is...

SELF-DISCHARGE HEAT INSTRUMENT CALVET LV HIGHEST HEAT MEASUREMENT ACCURACY with Calvet 3D sensors capturing 93-95% of all heat forms, the highest level on the market MODIFIABLE TEMPERATURE CONDITIONS for increased flexibility and replications of real life conditions CONVENIENT, INTERCHANGEABLE CELLS to perform varied experiments in one instrument: • Self-discharge with standard cells • Charge/discharge with cells allowing the use of electrical wiring and connections to battery cycler • Single or twin measurements LARGE CELL VOLUME to test battery sizes up to 33mm diameter and 100mm height,...