101938 3.7Vリチウムバッテリー

3.7V Lithium Battery Structure and Composition

The 3.7V lithium battery is composed of a positive electrode material, a negative electrode material, an electrolyte system, and a separator layer. The positive electrode typically uses lithium-based compounds such as lithium cobalt oxide, lithium iron phosphate, or lithium manganese oxide depending on the design specification. The negative electrode is commonly made of graphite or other carbon-based materials with stable intercalation properties. The electrolyte consists of lithium salts dissolved in organic solvents, enabling ion transfer between electrodes. The separator is a microporous polymer film designed to prevent direct contact between electrodes while allowing lithium-ion movement.

Manufacturing Materials and Cell Construction

During manufacturing, electrode materials are coated onto aluminum foil for the cathode and copper foil for the anode. These coated electrodes are precisely rolled or stacked to form a jelly-roll or laminated structure depending on cell type. The assembly process is carried out in a controlled dry environment to prevent moisture contamination. After stacking or winding, the cell is inserted into a casing, which may be cylindrical, prismatic, or pouch-type depending on design requirements. The electrolyte is then injected, and the cell is sealed using heat sealing or laser welding techniques.

Production Process and Formation

The production process includes electrode mixing, coating, drying, calendaring, slitting, stacking or winding, electrolyte filling, sealing, and formation cycling. Formation cycling is a critical step where controlled charging and discharging stabilize the internal chemical structure and activate the electrochemical system. Aging tests are performed afterward to ensure consistency in internal resistance and voltage stability across batches.

Technical Standards and Quality Control

3.7V lithium batteries are manufactured under strict industrial standards such as IEC 62133, UN38.3, and other regional safety certifications. Quality control procedures include dimensional inspection, impedance testing, capacity grading, leakage detection, and cycle life sampling. Environmental testing may involve high temperature, low temperature, vibration, and short-circuit simulations to validate structural integrity and electrochemical stability. Each production batch must pass traceability requirements to ensure compliance with international safety and performance regulations.

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