Understanding Cylindrical Lithium-Ion Batteries: Types, Applications, and Advantages


What is a Cylindrical Lithium-Ion Battery?

A cylindrical lithium-ion battery, known for its standardized design, is a type of lithium-ion battery that retains top-notch quality and performance while boasting an economical design. With its cylindrical shape, this battery finds widespread applications across various sectors, including portable electronics, electric vehicles, and energy storage systems.


The structure of a cylindrical lithium-ion battery comprises:

  • Casing: A metal outer shell providing structural integrity to the battery’s internal components.
  • Electrodes: Two main electrodes (anode and cathode) housing graphite and other materials, hosting and releasing lithium ions during charging.
  • Electrolyte: Functions as an electron transport carrier and ensures high voltage and energy in the battery.
  • Separator: A thin barrier that prevents direct contact between electrodes, allowing the passage of electrolyte ions.

Diverse Uses of Cylindrical Lithium-Ion Batteries:

These batteries offer high energy storage capacity and reliable performance, making them indispensable in numerous applications. They power electronic devices like laptops, smartphones, and digital cameras. Moreover, they serve as energy storage units for renewable sources like solar and wind, providing extended runtimes, lightweight designs, and high power output. Additionally, they power medical devices, power tools, and electric vehicles, contributing to their versatility.

Classifying Different Types of Cylindrical Lithium-Ion Batteries:

Various chemistries characterize cylindrical lithium-ion batteries, each with distinct properties and applications:

  • Lithium Cobalt Oxide: Ideal for portable electronics due to its high energy density using cobalt oxide as a cathode material.
  • Lithium Manganese Oxide: Offers low-temperature resistance, longevity, and stability, suitable for sea life-saving equipment and transmitters.
  • Ternary Material Batteries: Comprising graphite anode and lithium-nickel-cobalt-manganese cathode, they offer high energy density but relatively shorter lifespans.
  • LiFePO4 Batteries: Known for high energy density, longevity, and rapid charging, widely used in electric vehicles and home energy storage systems.

Different Sizes of Cylindrical Lithium-Ion Batteries:

  • 10400: Compact and typically used in mini electronics like flashlights and mini stereos.
  • 14500: Comparable in size to a standard AA battery, commonly used in wireless audio and digital cameras.
  • 16340: Often employed in high-performance flashlights and cameras.
  • 18650: Widely used due to its mature technology in mobile phones and laptops, providing around 10 kWh of battery capacity.
  • 21700: Gaining popularity for digital, electric vehicles, and power tools.
  • 32650: Offers higher capacity, suitable for extensive energy storage applications.
  • 26650: Provides higher capacity and consistency, becoming a replacement trend for 18650 batteries.

Pros and Cons of Cylindrical Lithium-Ion Batteries:


  • Long cycle life and better safety features.
  • Cost-effective due to standardization and reliability.
  • Versatile shape and sizes for various applications.
  • High power output suitable for numerous devices.
  • Balances performance and cost-effectiveness.
  • Efficient energy storage technology.


  • Vulnerable to overheating and safety concerns.
  • Variability in cell dimensions may occupy more space.
  • Challenges in managing smaller batteries in parallel configurations.
  • Energy density increase within confined spaces.

Difference Between Cylindrical and Prismatic Lithium-Ion Batteries:

Key differences include shape (cylindrical vs. rectangular), cell design (single-core vs. laminated), energy density, and capacity.

Number of Cylindrical Batteries Required for Motorcycle Lithium Battery:

The number of cells needed depends on voltage and capacity requirements. For a 60-volt system, 19 lithium iron phosphate cells are typically connected in series. Capacity selection depends on the motorcycle’s power needs.

TYCORUN ENERGY’s 60V 30Ah Swappable Motorcycle Battery:

The swappable motorcycle battery from TYCORUN ENERGY uses 192 cylindrical lithium-ion batteries in series and parallel (16S12P) to achieve the desired voltage and capacity. This NMC 3.6V 2900mAh battery serves battery swap stations, combining functionality with an appealing design.

[Insert image of the 60V 30Ah battery replacement cabinet]

Understanding the different types, sizes, and applications of cylindrical lithium-ion batteries is crucial for selecting the right power source for various devices and systems.