13350 3.7V Lithium Capacitor Battery

3.7V Lithium Capacitor Battery Structure Overview

The 3.7V lithium capacitor battery (13350 series) is developed by engineers with a hybrid cylindrical architecture, which incorporates lithium-ion electrode chemistry and capacitor-like internal regulation behavior. To begin with, they position cathode and anode foils with a high-precision separator layer, and they coil the layered structure into a small spiral core. Meanwhile, technicians put the rolled element into a rigid cylindrical metal casing, and they stabilize internal alignment and then electrolyte injection starts. Then they seal the core structure to ensure even distribution of pressure in the later sealing processes.

Material Composition and Electrochemical System

The cathode layer is made by applying lithium metal oxide compounds on aluminum foil by manufacturers, and the anode layer is made by applying graphite based slurry on copper foil. Besides this, they present a microporous PP/PE separator that allows ion movement but does not allow direct contact with electrodes. Moreover, they make a lithium salt electrolyte (usually LiPF6 in organic carbonate solvents), and they carefully regulate the level of moisture to ensure chemical stability. In the meantime, the cylindrical housing is made of aluminum alloy or steel material to provide mechanical rigidity and sealing integrity in the conditions of internal pressure.

Electrode Winding and Assembly Process

Technicians cut electrode sheets into fine strips and feed them through automated winding equipment to create a uniform jelly-roll core. They then control the tension of winding to prevent misalignment and internal stress build-up. Then they put the rolled core into the cylindrical shell and attach the electrode tabs to terminal interfaces. They then use laser welding or resistance welding to fix electrical connections. In the meantime, they check dimensional consistency to provide a consistent internal layering across the structure.

Formation Cycling and Industrial Standard Compliance

To start the formation cycling, engineers use electrochemical reactions to stabilize the solid electrolyte interphase layer within the cell. Then, they perform aging tests in controlled temperature to test voltage stability and impedance behavior. Lastly, quality teams carry out dimensional inspection, internal resistance measurement, and sealing verification. During the production process, they are in compliance with IEC 62133 and UN38.3 standards, which ensures structural integrity, electrical consistency, and compliance with transport safety requirements in the manufacturing of 3.7V lithium capacitors batteries.

Product Features

1. Customizable

Customizable to meet customer requirements

2. High Power

Max. 20C discharge rate available

3. Long Cycle Life

Satisfies the long term product use requirements.

4. High Safety

Passed comprehensive safety tests

5. True Rated Capacity

Equates 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 with many portable and powered electronic devices, and common uses of the product include:

• Personal Care and 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.