13300 3.7V Capacitor-Shaped Lithium Battery

Capacitor-Shaped Lithium Battery Structure Overview

The capacitor-shaped lithium battery is built with a compact cylindrical architecture that is similar to a hybrid form factor by engineers. They roll the assembly into a dense core structure and align electrode foils and separator layers into a tightly controlled spiral winding first. In the meantime, they place the wound element into a rigid metal shell that is sealed to contain it. Subsequently, technicians stabilize internal geometry and set up the unit to infuse electrolytes under controlled environmental conditions.

Material Composition and Electrochemical System

To create the cathode layer, manufacturers apply the lithium metal oxide compounds to the aluminum foil, and to create the anode layer, they apply the graphite-based slurry to the copper foil. Moreover, they add a microporous PP/PE separator to retain ionic pathways without direct contact with electrodes. Moreover, they make an organic carbonate electrolyte with lithium salts like LiPF6, and they regulate moisture content to stabilize chemicals. In the meantime, the outer casing is made of aluminum alloy or steel material to give it structural rigidity and sealing reliability.

Electrode Winding and Assembly Process

Technicians cut coated electrodes into fine strips, and they insert them into automated winding machines to create a standard spiral core. Then they control the winding tension so as not to deform and build up internal stress. Once this is done, they place the rolled structure into the cylindrical housing and attach electrode tabs to terminal interfaces. They then use laser or resistance welding to fix electrical contacts. In the meantime, they check the accuracy of alignment to ensure uniform distribution of layers.

Formation Cycling and Standard Compliance System

Formation cycling is initiated by engineers to enable electrochemical reactions and stabilize the solid electrolyte interphase layer in the cell. Then they perform aging tests in controlled temperature conditions to test voltage stability and impedance behavior. Lastly, quality teams conduct dimensional inspection, internal resistance testing, and sealing verification. They adhere to IEC 62133 and UN38.3 standards throughout the production process, and guarantee structural integrity, electrical consistency, and transport safety compliance in the manufacture of capacitor-shaped lithium batteries.

Product Features

1. Customizable

Customizable to meet customer requirements

2. High Power

Maximum discharge rate of 20C

3. Long Cycle Life

Satisfies long term product use requirements

4. High Safety

Became certified on extensive safety tests

5. True Rated Capacity

Corresponds to the product design capacity

6. Multi-Chemistry Options

Includes LCO, NCM, NCA and LFP systems

7. Multi-Protection Mechanism

Built-in protection board with overcharge, overdischarge, overcurrent and short-circuit protection

Product Application Areas

The product can be used in numerous types of portable and powered electronic devices, and some common uses are:

• Personal Care & Health: Electric Toothbrushes, Beauty Devices, Fitness Trackers, Medical Devices.
• Smart Digital & Audio: Headphones, Speakers, Nebulizers, Toys, Lights.
• Financial Payment & Office: POS Machines, USB Tokens, Portable Printers.