Based on the Olympus LED Microscope, the EQ-STC-RAMAN split-able test cell is designed for the cutting-edge battery material In-situ Raman Analysis. The 8 mm diameter quartz window on the bottom allows in-situ Raman analysis of battery material during charging and discharging. Such a cell can accept various sizes (19, 20, and 24 mm diameter) of electrodes and separators and test the electrodes easily and quickly.Note: Customized (Au coated) test cells are non-returnable and non-exchangeable.MTI has granted the patent 2016205216261 for the Split Test Cell with Quartz Window - EQ-STC-RAMAN since June 2016. SPECIFICATIONS: Features Electrolyte corrosive-proof PTFE Guide Sleeve capable of withstanding up to 250 ºC. Standard size of I.D. 19, 20, 24 mm will be included in the package. Other sizes (eg: I.D. 5, 10, 12, and 15 mm) are also available upon request. The cell is well sealed by electrolyte corrosive-proof PTFE O-rings. A 6 mm height spacer inside the test cell to press down on the electrode and prevent the electrode from curling. Small enough to be put in and taken out from a glove box. Easy to separate and clean after testing. Same functionality to "Swagelok Coin Cell" but with more size options for electrode and separator and also the proper dimensions for glove box compatibility. Material Stainless Steel 316 Quartz Window PTFE Sleeve PTFE O-ring or FKM O-ring Dimension Height: 61mm min. without load. Diameter: 70mm (widest diameter without lead.) Lead-exposed length: 19mm Quartz Window: 18.3 mm (0.71") x 0.2 mm Thickness The thin quartz window minimizes the incoming photon loss and improve collection effieicny of scattered signals. Noted the quartz window is fragile and please be careful about any collision and scratch. Quartz Observation Window Observation Area = 5.1 mm Dia. Quartz Observation Window Quartz Window Size = 18.3 mm Dia. Max. Working Temperature 250 ºC PTFE Sleeve Size Option PTFE (white) sleeve around a stainless steel pressing pad. PTFE sleeve I.D.19, 20, and 24 mm are included. Other sizes (eg. I.D. 5, 10, 12, and 15 mm) are also available upon request. O-ring O-ring O.D. I.D. Quartz window O-ring 15mm 11mm Spring compression O-ring 24mm 17mm Top/Bottom contact O-ring 38mm 31mm Bolt-size Bolt Type Head Height Head Diameter Top and bottom split cell fastening 4mm Hex 5mm 7.8mm Quartz window fastening 3mm Hex 4.2mm 6.8mm Optional Please contact us for purchasing multiple or various-sized PTFE sleeves. Anti-corrosive Au coating on the cell internal and inserts is an option. $396 surcharge will apply. Max. Cell Thickness Cathode + separator + anode: 6mm Detailed Illustration of the Test Cell (click the picture to enlarge) Installation and Operation Notices (click the pictures right to see the details) Note: First two photos (left and middle) show the what's included in the split cell tester. Application Notes The Bolts and the top lead go below the top face and it is easy to be loaded to the microscope. For In-situ Laser Raman Spectroscopy, the typical wavelength used is ranging from ultra-violet (244 nm~364 nm) to near infrared (785 nm~1064 nm). The quartz observation window we used can provide >80% light-throughput for this wavelength range. For better in-situ observation, electrode material shall face the window. you may use lab press and dry pressing die below to prepare an electrode pellet instead of using electrode coated Al or Cu foil. Optional: Purchase a vacuum pen for easy component placement.
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