12500 3,85V литий-ионная цилиндрическая батарея

Li-ion Cylindrical Battery Cell Structure Overview

Manufacturers construct the Li-ion cylindrical battery using a tightly wound jelly-roll architecture inside a rigid metal shell. First, they align the cathode, anode, and separator layers into a continuous laminate sheet, and they roll this assembly into a compact cylindrical core. Meanwhile, engineers insert the rolled structure into a precision-machined steel or aluminum casing. After that, they stabilize internal alignment and prepare the cell for subsequent electrolyte processing under controlled environmental conditions.

Material Composition and Electrode System

Producers apply lithium metal oxide compounds onto aluminum foil to form the cathode layer, while they coat graphite-based slurry onto copper foil to build the anode layer. In addition, they introduce a microporous polyethylene–polypropylene separator to maintain ionic conduction and prevent direct electrode contact. Furthermore, they select a lithium salt electrolyte such as LiPF6 dissolved in organic carbonate solvents, and they ensure chemical stability throughout the system. Meanwhile, the cylindrical housing uses high-strength steel or aluminum alloy to maintain structural integrity under pressure conditions.

Процесс намотки и сборки электродов

Technicians cut electrodes into precise strips and then feed them into automated winding equipment. Subsequently, they roll the multilayer stack into a uniform cylindrical “jelly-roll” form while controlling tension and alignment. Then, they insert the wound core into the metal can and connect the bottom electrode to the casing base. After that, they install the top cap assembly and weld it using laser or resistance welding techniques. At the same time, they verify internal positioning to avoid deformation during sealing.

Formation Cycling and Industry Standards Compliance

Engineers execute formation cycling to activate electrochemical reactions and stabilize solid electrolyte interphase layers inside the cell. Then, they conduct aging tests under controlled temperature conditions to evaluate voltage consistency and impedance stability. Finally, quality teams perform dimensional inspection, internal resistance measurement, and safety verification. Throughout production, they comply with IEC 62133 and UN38.3 standards, and they validate mechanical strength, electrical reliability, and transport safety requirements for Li-ion cylindrical battery manufacturing.

Особенности продукта

1. 🛠️ Настраиваемое
   Можно настроить под требования клиента
2. ⚡ Высокая сила
   Максимальная скорость разряда 20°C доступна
3. ⏱️ Длинный цикл жизни
   Удовлетворяет долгосрочные потребности в использовании продукции
4. 🛡️ Высокая безопасность
   Прошёл комплексные испытания безопасности
5. 🔋 Истинная номинальная вместимость
   Соответствует проектной мощности продукта
6. ⚛️ Многохимические варианты
   Охватывает системы LCO, NCM, NCA и LFP
7. 🧰 Механизм многозащитной защиты
   Встроенная защитная плата с защитой от перезарядки, перерасхода, перенапряжения и защиты от короткого замыкания

Области применения продукции

Этот продукт подходит для различных портативных и управляемых электронных устройств, с типичными применениями:

• Личный уход и здоровье: Электрические зубные щётки, косметические устройства, фитнес-трекеры, медицинские устройства

• Smart Digital & Audio: Наушники, колонки, небулайзеры, игрушки, светильники

• Финансовая оплата и офис: POS-машины, USB-жетоны, портативные принтеры