16350 Célula de Bateria de Lítio Cilíndrica de 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.

Fabricação e Processo de Enrolamento de Eletrodos

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 de Ciclagem de Formação e Conformidade Padrão

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.

Características do Produto

1. 🛠️ Personalizável
   Personalizável para atender às necessidades do cliente
2. ⚡ Alta Potência
   Taxa máxima de descarga de 20°C disponível
3. ⏱️ Ciclo de Vida Longo
   Atende às necessidades de uso de longo prazo do produto
4. 🛡️ Alta Segurança
   Passou em testes de segurança abrangentes
5. 🔋 Capacidade Nominal Real
   Corresponde à capacidade de design do produto
6. ⚛️ Opções Multi-Químicas
   Abrange sistemas LCO, NCM, NCA e LFP
7. 🧰 Mecanismo de Múltiplas Proteções
   Placa de proteção embutida com proteção contra sobrecarga, sobredescarga, sobrecorrente e curto-circuito

Áreas de Aplicação do Produto

Este produto é adequado para uma variedade de dispositivos eletrônicos portáteis e motorizados, com aplicações típicas incluindo:

• Cuidados Pessoais e Saúde: Escovas de dentes elétricas, dispositivos de beleza, rastreadores de fitness, dispositivos médicos

• Digital e Áudio Inteligentes: Fones de Ouvido, Alto-Falantes, Nebulizadores, Brinquedos, Luzes

• Pagamento Financeiro e Escritório: Máquinas POS, Tokens USB, Impressoras Portáteis