Product Description  

Power Lithium Cell 802045 3.7V 750mAh Rechargeable Lithium Ion Polymer Battery For Smart Device​

 
Production steps for lithium polymer battery cell:

‌Positive electrode material preparation‌:

Using ternary materials (composite oxides of nickel, cobalt and manganese) as active materials, positive electrode plates are made through stirring, coating and other processes. ‌

‌Negative electrode materials‌: Carbon materials such as graphite are usually used, and negative electrode plates are made through coating and rolling. ‌

‌Electrolyte‌: It is a mixture of lithium salt (such as lithium hexafluorophosphate) and organic solvent, which directly affects the performance of the battery. ‌

Key production steps:

‌Slurry preparation‌: The positive and negative active materials are mixed with the binder to form a uniform slurry, which is then coated on metal foil (such as copper foil or aluminum foil) after being stirred by a vacuum mixer without bubbles. ‌

‌Pole plate processing‌: The coated pole plates are dried, rolled (densified) and cut to form pole plates of specific sizes. ‌

‌Battery assembly‌: The positive and negative pole plates, separators, etc. are assembled into a battery cell and injected with electrolyte. ‌

‌Formation and testing‌: Activate battery performance through charge and discharge cycles and screen out unqualified products

Application:
 
Smart devices:
Suitable for devices with moderate battery life requirements such as fingerprint locks, cervical massagers, microphones, etc. The battery has a standard voltage of 3.7V and supports working in an environment of -10~60℃. The cycle life is up to 500 cycles, which can meet daily use needs. ‌
 
Consumer electronics:
Can be expanded to small household appliances such as aromatherapy machines and beauty devices. Its lightweight design (10×20×40mm) and low-temperature working characteristics (-10℃ start-up) are suitable for outdoor scenes in winter. ‌
 
Industrial scene:
Outstanding performance in medical equipment (such as detectors, scanning pens). The battery has high consistency and low self-discharge characteristics (monthly self-discharge rate ≤5%), and can maintain stable performance after long-term storage.
 
How to make sure the battery qualtiy:
 
 
A-grade battery cells:

Use high-quality raw materials, sufficient capacity, long battery life, safe and non-explosive, non-inflating, and fully automated manufacturing.
High-performance protection board

Use high-strength protection board, stable voltage output to support current (use protection board according to battery output), prevent overcharging, over-discharging, and short circuit.
 
International standard lead wire:
Use high-quality wire, strong conductivity, not easy to break, can support high-probability discharge.
 
Wide nickel tabs:
Use high-quality tabs, good thermal conductivity and electrical conductivity, reduce heat generation, and stable current output.
 
Pictures: