Cylindrical 18650 Cell
Molicel M35A
Cylindrical 18650 cell delivering 3.4 Ah capacity with 259 Wh/kg energy density and 10 A maximum discharge rate.
Overview
The Molicel INR-18650-M35A is a lithium-ion Li-ion cylindrical 18650 cell designed for applications that demand reliable performance. Released in 2019 and manufactured in Taiwan, this cylindrical 18650 cell delivers 3.4 Ah capacity and 12.42 Wh of energy at a nominal voltage of 3.6 V, with a maximum continuous discharge capability of 10 A, making it suitable for general-purpose applications with moderate power requirements.
Key Features
Discharge rate: 10 A continuous (2.9 C)
Charging rate: 0.5 C charging rate
Energy density: 259 Wh/kg
Power density: 750 W/kg
Applications: e-mobility, space, power tools
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Molicel
Model
INR-18650-M35A
Type
Li-ion
Form factor
Cylindrical 18650
Country of origin
Taiwan
Release year
2019
Nominal voltage
3.6
Energy capacity [Wh]
12.42
Capacity [Ah]
3.4
Gravimetric energy density [Wh/kg]
259
Gravimetric power density [W/kg]
750
Max continuous discharge [A]
10
Volume [cm³]
17.11
Mass [g]
48
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Graphite
Value
Applications & Use‑Cases
The Molicel INR-18650-M35A is well suited to the following applications due to its cylindrical 18650 and balanced 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-M35A across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
The Molicel INR-18650-M35A constant-current plots reveal voltage behaviour under steady loads, ideal for analysing efficiency.
Constant Current Temperature
The Molicel INR-18650-M35A constant-current plots reveal temperature behaviour under steady loads, ideal for analysing thermal response.
Pulse Power Behaviour
The Molicel INR-18650-M35A pulse power map evaluates short-duration load responses, allowing engineers to determine the maximum available power as a function of state of charge and temperature.
Dynamic Profile Response
The Molicel INR-18650-M35A mission-profile plots simulate real-world duty cycles, showing how the cell manages dynamic power demands and temperature changes.
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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 M35A with similar Cylindrical 18650 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
Molicel
E-One Moli Energy is a Taiwanese high-performance lithium-ion battery manufacturer
Molicel, a division of Taiwan's E-One Moli Energy Corp., is a leading manufacturer of high-performance lithium-ion battery cells for demanding applications. Renowned for their exceptional power density and thermal stability, Molicel 21700 cells are widely adopted in electric vehicles, power tools, and energy storage systems. Their innovative cell chemistry delivers superior cycle life and fast-charging capabilities, making them a preferred choice for automotive OEMs and industrial battery pack integrators. Molicel's commitment to quality manufacturing and rigorous testing standards ensures reliable performance across extreme operating conditions, positioning them as a key player in advanced battery technology development.
Frequently Asked Questions
What is the capacity and voltage of the Molicel M35A?
The Molicel M35A has a nominal capacity of 3.4 Ah and a nominal voltage of 3.6 V, providing 12.4 Wh of energy per cell.
What is the maximum continuous discharge capability of the Molicel M35A?
The Molicel M35A supports continuous discharge rates up to 10 A, delivering exceptional power density of 750 W/kg.
How much does the Molicel M35A weigh and what is its volume?
The cell has a mass of 48 g and a volume of 17.11 cm³.
In which industries is the Molicel M35A commonly used?
The Molicel M35A is used across e-mobility, energy storage, and general-purpose applications, applications that demand reliable performance and balanced specifications.
What is The Voltt and how does it accelerate cell evaluation?
The Voltt is About Energy's digital cell simulation platform that models electrochemical and thermal performance, reducing evaluation time by up to 70% compared to laboratory testing.
What data can be extracted using The Voltt?
Engineers can simulate and visualise voltage, temperature, and power responses under constant-current or mission-profile conditions, generating detailed discharge plots to support accurate cell comparison and validation.
