Cylindrical 18650 High-Power Cell
Molicel P30B
High-power cylindrical 18650 cell delivering 3 Ah capacity with 230 Wh/kg energy density and 30 A maximum discharge rate.
Overview
The Molicel INR-18650-P30B is a high-power Li-ion cylindrical 18650 cell designed for applications that demand sustained high current and high energy density. Released in 2023 and manufactured in Taiwan, this cylindrical 18650 cell delivers 3 Ah capacity and 10.8 Wh of energy at a nominal voltage of 3.6 V, with a maximum continuous discharge capability of 30 A, making it well suited to high-power systems operating under aggressive load profiles.
Key Features
High discharge rate: 30 A continuous (10.0 C)
Energy density: 230 Wh/kg
Power density: 2298 W/kg
Applications: e-mobility, space, power tools
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Molicel
Model
INR-18650-P30B
Type
Li-ion
Form factor
Cylindrical 18650
Country of origin
Taiwan
Release year
2023
Nominal voltage
3.6
Energy capacity [Wh]
10.8
Capacity [Ah]
3
Gravimetric energy density [Wh/kg]
230
Gravimetric power density [W/kg]
2298
Max continuous discharge [A]
30
Volume [cm³]
17.72
Mass [g]
47
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Graphite
Value
Applications & Use‑Cases
The Molicel INR-18650-P30B is well suited to the following applications due to its cylindrical 18650 and high power performance.
E-Mobility: Requires balanced energy and power density for range and acceleration, high cycle life for daily use, and robust calendar life to ensure long-term reliability.
Space: Requires exceptional gravimetric energy density for mass-constrained systems, stable performance across extreme temperature ranges, and proven reliability for mission-critical operations.
Power Tools: Needs sustained high discharge for continuous operation under load, low voltage polarisation to maintain tool performance, and mechanical robustness for demanding work environments.
General Applications: Suitable for applications requiring reliable lithium-ion performance with proven cycle life, consistent capacity delivery, and operational safety across diverse use cases.
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Performance & Model Data
Below are modelled performance metrics for the Molicel INR-18650-P30B across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
Access Molicel P30B constant-current discharge curves in Voltt to size your pack against the voltage window your system actually needs. (Chart shown is illustrative, not P30B data.)
Constant Current Temperature
Access Molicel P30B thermal discharge data in Voltt to specify cooling and cell spacing before you commit to a pack layout. (Chart shown is illustrative, not P30B data.)
Pulse Power Behaviour
Access Molicel P30B pulse power maps in Voltt to set peak current limits and parallel count for your worst-case load. (Chart shown is illustrative, not P30B data.)
Dynamic Profile Response
Access Molicel P30B mission profile simulations in Voltt to prove the pack holds up over a real duty cycle before you build it. (Chart shown is illustrative, not P30B data.)
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Case Studies
See how we helped McMurtry reduce cell evaluation time by 70% through data driven testing and modelling.
Motorsports
McMurtry Automotive: Faster cell evaluation
McMurtry Automotive used The Voltt and validated cell models to evaluate the transition from the Molicel P45B to P50B during early pack concept development.
Side by side modelling enabled rapid comparison of electrical and thermal behaviour, avoiding lengthy physical test campaigns. This approach reduced cell evaluation time by seven months, allowing the team to lock in cell selection and pack assumptions earlier while lowering technical risk and accelerating vehicle development.
Comparison with Related Cells
Compare the Molicel P30B with similar Cylindrical 18650 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
Molicel
Molicel is a Taiwanese manufacturer of high-power cylindrical lithium-ion cells
Molicel is the cell brand of E-One Moli Energy, a Taiwanese manufacturer whose technology traces back to lithium battery research begun in Canada in the 1970s. The company produces cylindrical 18650 and 21700 cells engineered for high continuous discharge, fast charge acceptance and thermal stability under sustained load. Its P series power cells and higher-capacity energy variants are used in eVTOL aircraft, motorsport and performance vehicles, power tools and aerospace systems, where discharge rate rather than energy density sets the design limit. Manufacturing is based in Taiwan with a long-standing Canadian research presence. Molicel is the reference supplier for many programmes that cycle hard and frequently.
Frequently Asked Questions
What is the capacity and voltage of the Molicel P30B?
The Molicel P30B has a nominal capacity of 3.0 Ah and a nominal voltage of 3.6 V, providing 10.8 Wh of energy per cell.
What is the maximum continuous discharge capability of the Molicel P30B?
The Molicel P30B supports continuous discharge rates up to 30 A, delivering exceptional power density of 2,298 W/kg.
How much does the Molicel P30B weigh and what is its volume?
The cell has a mass of 47 g and a volume of 17.72 cm³.
In which industries is the Molicel P30B commonly used?
The Molicel P30B is used across eVTOL, motorsports, drones, and e-mobility, applications that demand both high energy and power density.
What is The Voltt and how does it accelerate cell evaluation?
The Voltt holds 500+ verified commercial cell datasheets alongside validated simulation models built from cells characterised in About:Energy's own lab. Engineers screen candidates against their real duty cycle before buying hardware, which cut cell evaluation time by seven months for McMurtry Automotive and reduces evaluation cycles by up to 70%.
What data can be extracted using The Voltt?
Constant-current discharge curves at multiple C-rates, DC internal resistance against state of charge and temperature, pulse power maps, thermal response, and full mission-profile simulation with user-defined pack configurations. Models are available as equivalent circuit, thermal, physics-based and degradation formats, exportable for use in MATLAB, Simulink and Python workflows.
