Cella per batteria al litio cilindrica 16350 3,7V

Cylindrical Lithium Battery Cell Structure Overview

Engineers construct the cylindrical lithium battery cell (16350 class, 3.7V nominal) using a compact spiral-wound architecture. First, they laminate cathode foil, anode foil, and separator membrane into a continuous electrode strip, and they wind it into a tightly controlled cylindrical core. Meanwhile, technicians regulate winding tension to keep layer spacing uniform and prevent internal misalignment. After that, they insert the rolled core into a precision metal shell and stabilize its position before electrolyte injection and sealing operations begin.

Material System and Electrochemical Composition

Manufacturers coat lithium transition-metal oxide onto aluminum foil to form the cathode layer, while they apply graphite-based slurry onto copper foil to build the anode layer. In addition, they introduce a PP/PE microporous separator to maintain ionic conduction while blocking direct electrode contact. Furthermore, they prepare an organic carbonate electrolyte containing lithium hexafluorophosphate (LiPF6), and they strictly control moisture content during handling. Meanwhile, the cylindrical housing uses steel or aluminum alloy to ensure mechanical strength and pressure resistance during assembly.

Processo di Fabbricazione e Avvolgimento degli Elettrodi

Technicians prepare electrode slurry by mixing active materials, conductive carbon, and polymer binders into a uniform suspension. Then, they coat the slurry onto metallic current collectors using precision coating equipment and dry it through staged thermal ovens. Subsequently, they apply calendaring pressure to control thickness and density consistency. After cutting the electrodes into narrow strips, they feed them into automated winding machines to form a compact jelly-roll structure. At the same time, they weld electrode tabs using ultrasonic or resistance techniques to ensure stable electrical connection.

Sistema di Ciclaggio della Formazione e Conformità Standard

Engineers initiate formation cycling to activate electrochemical reactions and stabilize the solid electrolyte interphase layer inside the cell. Then, they conduct aging tests under controlled temperature environments to evaluate voltage stability and impedance behavior. Finally, quality teams perform dimensional inspection, internal resistance measurement, and sealing verification. Throughout production, manufacturers comply with IEC 62133 and UN38.3 standards, ensuring structural integrity, electrical consistency, and transport safety compliance for cylindrical lithium battery cell manufacturing.

Caratteristiche del prodotto

1. 🛠️ Personalizzabile
   Personalizzabile per soddisfare le esigenze dei clienti
2. ⚡ Alta potenza
   Tasso massimo di scarico di 20°C disponibile
3. ⏱️ Ciclo Lungo
   Soddisfa le esigenze di utilizzo a lungo termine del prodotto
4. 🛡️ Alta Sicurezza
   Superato test di sicurezza completi
5. 🔋 Capacità Nominale Vera
   Rispecchia la capacità di progettazione del prodotto
6. ⚛️ Opzioni Multi-Chimica
   Copre i sistemi LCO, NCM, NCA e LFP
7. 🧰 Meccanismo di Protezione Multipla
   Scheda di protezione integrata con protezione contro sovraccarichi, sovrascarichi, sovracorrenti e cortocircuiti

Aree di applicazione dei prodotti

Questo prodotto è adatto a una varietà di dispositivi elettronici portatili e elettrici, con applicazioni tipiche che includono:

• Cura personale e salute: Spazzolini elettrici, dispositivi di bellezza, tracker per la fitness, dispositivi medici

• Smart Digital & Audio: Cuffie, altoparlanti, nebulizzatori, giocattoli, luci

• Pagamento finanziario e ufficio: Macchine POS, Token USB, Stampanti Portatili