21700 Pre-Clamped Empty Cylindrical Cell Case with Built-in PTC and Insulating Gasket, 50 pcs/pack, CPCECCC21700
Use your own shipping account?
We support FedEx, UPS, and DHL third-party billing for institutional customers.
Place your order first, then email shipping@echemsupplies.com with your account details and order number. We'll generate the label using your account and refund your shipping charges, less a handling fee.
An 21700 cylindrical cell case is a precision-engineered enclosure designed to withstand high internal pressures, provide electrical connectivity, and ensure safety during a failure. The built-in PTC is used to cut off current if the battery overheats. The insulating O-ring is typically made of Nylon or PET, these prevent the positive cap from shorting against the negative side of the steel can. The pre-clamped cylindrical cell case can be used for prototyping show.
| Part Number |
CPCECCC21700 (C-PCECCC21700) |
| Material |
Case: Nickel plating carbon steel Cap with PTC, Sealing Gasket: PP; Tab: Al Insulating gasket: PET |
| Dimension |
Case Dimension (O.D. 21.2mm * I.D. 20.7mm * H 73.1mm)
 Cap Dimension (D: 20.4 mm * H: 4.2mm)
 Top & Insulator: D 14.4mm * H 0.93mm
|
| Cap and PTC Features |
Pressure limit for current cut-off: 0.8-1.3 MPa
Pressure limit for exploration: 1.8-2.4 MPa
No-Action Current: 3.0 A, Action Current: 6.0 A
Max. Voltage: 15 V, Max. Current: 40 A
Cap resistance: <0.5 mΩ
|
| Weight |
9.5 g/cell
|
| Package Grade |
50 pcs/pack
|
