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|Product Name:||Rechargeable 901744 Li-Ion Battery 3.7V 680mAh Lithium Polymer Battery With KC||Keyword1:||KC Approved 3.7v 680mah Rechargeable Lipo Battery|
|Keyword2:||Li Ion Lipo Battery 3.7v 680mah With KC Certification||Chemistry:||Lithium Ion Polymer|
|Application:||E-Cigarette, GPS Tracker, MP3 Player, Toys, Smart Watch, Mini Fan, Bluetooth Headset, POS, GPA||Keyword3:||901744 3.7v 680mah Lithium Polymer Battery|
lifepo4 prismatic battery,
lfp battery charger
Rechargeable 901744 Li-Ion Battery 3.7V 680mAh Lithium Polymer Battery with KC
|Cycle Life||300 times >80%|
|⋅no memory effect|
|Features||⋅customized and flexible size|
|⋅anti-overcharger,anti-overload, anti-overcurrent, anti-shortcircuit production(with PCM)|
|storage for a long time(>3 months)and the storage condition shall be:<35°C;65±20RH|
|Certificate||CE ROHS UN38.3 MSDS KC|
|Application||⋅Smart mobile phone,electronic products, medical products|
|⋅Hair dryer,robot vacuum cleaner,wireless video doorbells|
|⋅Miner’s lamp,digital products. Portable electric Music box|
|⋅Tablet pc, Modality equipment: Digital camera, DV, mobile DVD|
INTERIOR AND EXTERIOR GALLERY
BATTERY PRODUCTION PROCESS
Mix solvent and bound separately with positive and negative active materials. Make into positive and negative pasty materials after stirring at high speed till uniformity.
Now, we are in coating line. We use back reverse coating. This is the slurry-mixing tank. The anode(Cathode) slurry is introduced to the coating header by pneumaticity from the mixing tank. The slurry is coated uniformly on the copper foil, then the solvent is evaporated in this oven. There are four temperature zones, they are independently controlled. Zone one sets at 55 degree C, zone two sets at 65 degree C, zone three sets at 80 degree C, zone four sets at 60 degree C. The speed of coating is 4 meters per minute.
You see the slurry is dried. The electrode is wound to be a big roll and put into the oven. The time is more than 2 hours and temperature is set at 60 degree C.
Throughout the coating, we use micrometer to measure the electrode thickness per about 15 minutes. We do this in order to keep the best consistency of the electrode.
Cut a roll of positive and negative sheet into smaller sheets according to battery specification and punching request.
Press the above positive and negative sheets till they become flat.
Punching sheets into electrodes according to battery specification,
After coating we compress the electrode with this cylindering machine at about 7meters per minute. Before compress we clean the electrode with vacuum and brush to eliminate any particles. Then the compressed electrode is wound to a big roll. We use micrometer to measure the compressed electrode thickness every 10 minutes. After compressing we cut the web into large pieces. We tape the cathode edge to prevent any possible internal short. The large electrode with edge taped is slit into smaller pieces. This is ultrasonic process that aluminum tabs are welded onto cathodes using ultrasonic weld machine. We tape the weld section to prevent any possible internal short. And finally, we clean the finished electrodes with vacuum and brush.
In anode making process, we cut the material into certain length strips. At the mean time, we put a small piece of insulation tape to the tab in order to prevent any possible internal short. Then the prepared nickel tab is riveted on anode and pat plain. We also tape the rivet section to prevent any possible internal short. And finally, we clean the finished electrodes with vacuum and brush.
This is Jelly roll, a manual winding process. In the course of Jelly roll, firstly, we place the separator in between central pins, press the foot switch to turn central pins about 120 degrees. Secondly, place the anode to the edge of central pins, and turn central pins about 180 degrees. Lastly, place the cathode to the edge of central pins. During the winding process, we apply tension by pressing the electrodes and the separator. We put the termination tape at the end.
After Jelly roll, we check the short circuit, then form the Jelly roll by pressing, so that it is easier to insert the Jelly roll into the can.
Contact Person: Sales Manager