Battery Cartridge – temperature monitoring
This battery cartridge incorporates ability to measure temperature to the features of the Three Electrode Battery Test Cell. It is ideal choice when researcher wants to monitor temperature of the materials while performing reproducible electrochemical measurements of battery and supercapacitor materials under e.g. controlled compression. The installed temperature sensor is standard Pt100 resistance temperature detector (RTD). It ensures accurate and reliable readings in -50°C → +250°C range. It has a robust construction with the sensing element encased in a rigid 316 stainless steel sheath. The leads have a durable and flexible Teflon insulation and are screened for protection against electromagnetic interference. Leads connect to any 2, 3 or 4 wire Pt100 temperature measuring equipment.
Battery cartridge accommodates the battery stack (anode, cathode and spacer) in between plungers and a separator lock ring, reference electrode and temperature probe. The (default) electrode cartridge and plungers are designed for planar electrodes with diameter of 18 mm and total sandwich thickness up to 2 mm (an option for thicker electrode stacks is available on request). The recommended diameter of separator for default cartridge size is 22 mm. The lock ring secures the separator in the electrode cartridge allowing easy and safe electrodes insertion, while ensuring accurate alignment. The upper and lower electrode plungers are available in various materials: 316L/317L Stainless Steel (default), copper, aluminum, nickel, gold plated nickel, etc. The punch-type reference electrode is installed from the side of the electrode cartridge. Thanks to sharp edge of the punch the reference electrode (Li/Na/K, etc.) can be easily cut from the metal foil and directly loaded into cell. The magnetic mount facilitates rapid assembly of the cartridge in the cell base. For 2-electrode measurements the reference electrode feedthrough hole can be closed with a plug.
The battery cartridge elements are constructed with materials that are inert to the sample (Stainless steel 316L/317L and PEEK). It well fits aqueous (FKM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. Good electrical contact is ensured by gold plated pins. The battery cartridge can be effortlessly installed in the Three Electrode Battery Test Cell even when operating in the glove box, ensuring possible human error reduced to minimum.
This battery cartridge can be used for all common battery measurements, such as galvanostatic cycling, cyclic voltammetry or electrochemical impedance spectroscopy. Both liquid and solid state or gel-polymer electrolytes can be studied. Additionally, properties and performance of supercapacitor materials can be investigated. Various materials can be examined, including typical Li-ion electrodes (graphite, NMC, LTO, etc.) and other chemistries – sodium, magnesium, potassium etc. It can also be applied to measure the ionic conductivity of separators and electrolytes.
default electrode diameter: 18 mm
recommended separator diameter: 22 mm
maximum electrode sandwich thickness: 2 mm
operating temperature: -40°C – 80°C (default); -40°C – 180°C (HT option on request)
sensor type: Pt100 (100 Ohms @ 0°C) to IEC 751, Class B, 4 wire
sensor construction: 3 mm diameter, 316 stainless steel sheath.
sensor probe temperature range: -50°C to +250°C
sensor extension cable: 2 metre flexible Teflon® insulated, screened
sensor termination: 4-wire tails – allows connection to any PT100 instrument 2, 3 or 4 wire (on request DB9 connector can be included)
1 x 3-electrode cartridge with temperature sensor port
1 x punch-type reference electrode
1 x upper plunger (Stainless Steel 316L/317L)
1 x lower plunger (Stainless Steel 316L/317L)
1 x separator locking ring
1 x set of O-Rings
1 x RE termination plug
1 x temperature sensor mount
1 x Pt100 temperature sensor