16350 3.7V円筒形リチウム電池セル

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.

電極の製造および巻線プロセス

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.

編隊のサイクルと標準遵守システム

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.

製品の特徴

1. 🛠️ カスタマイズ可能
   顧客の要望に合わせてカスタマイズ可能
2. ⚡ ハイパワー
   最大20°Cの放電率が利用可能です
3. ⏱️ 長周期寿命
   長期的な製品使用ニーズを満たします
4. 🛡️ 高い安全性
   包括的な安全試験に合格
5. 🔋 真定格容量
   プロダクトデザイン能力に合致します
6. ⚛️ 多化学オプション
   LCO、NCM、NCA、LFPシステムをカバーしています
7. 🧰 多重保護機構
   過充電、過放電、過電流、ショート回路保護を備えた内蔵保護ボード

製品応用分野

この製品は、さまざまな携帯型および電源型電子機器に適しており、典型的な用途は以下の通りです:

• パーソナルケアと健康: 電動歯ブラシ、美容機器、フィットネストラッカー、医療機器

• スマートデジタル&オーディオ: ヘッドホン、スピーカー、ネブライザー、おもちゃ、ライト

• 金銭的支払いとオフィス: POSマシン、USBトークン、ポータブルプリンター