Cylindrical 21700 High-Power Cell
EVE Energy 40PL
High-power cylindrical 21700 cell delivering 4 Ah capacity with 215 Wh/kg energy density and 70 A maximum discharge rate.
Overview
The EVE Energy 40PL is a high-power Li-ion cylindrical 21700 cell designed for applications that demand sustained high current and high energy density. Released in 2023 and manufactured in China, this cylindrical 21700 cell delivers 4 Ah capacity and 14.4 Wh of energy at a nominal voltage of 3.6 V, with a maximum continuous discharge capability of 70 A, making it well suited to high-power systems operating under aggressive load profiles.
Key Features
Extremely high discharge rate: 70 A continuous (17.5 C)
Charging rate: 2.0 C charging rate
Energy density: 215 Wh/kg
Power density: 3761 W/kg
Applications: aviation, motorsports, e-mobility
Technical Specifications from the Manufacturer
Parameter
Manufacturer
EVE Energy
Model
40PL
Type
Li-ion
Form factor
Cylindrical 21700
Country of origin
China
Release year
2023
Nominal voltage
3.6
Energy capacity [Wh]
14.4
Capacity [Ah]
4
Gravimetric energy density [Wh/kg]
215
Gravimetric power density [W/kg]
3761
Max continuous discharge [A]
70
Volume [cm³]
24.93
Mass [g]
67
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Graphite/Si additive
Value
Applications & Use‑Cases
The EVE Energy 40PL is well suited to the following applications due to its cylindrical 21700 and high power performance.
Aviation: Requires high specific energy for extended flight duration, high power-to-weight ratio for climb performance, and reliable operation across wide temperature ranges at altitude.
Motorsports: Demands sustained high discharge under competitive load profiles, rapid transient response for acceleration, and thermal stability to maintain performance during race conditions.
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.
General Applications: Suitable for applications requiring reliable lithium-ion performance with proven cycle life, consistent capacity delivery, and operational safety across diverse use cases.
.jpg)
Performance & Model Data
Below are modelled performance metrics for the EVE Energy 40PL across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
The EVE Energy 40PL constant-current plots reveal voltage behaviour under steady loads, ideal for analysing efficiency.
Constant Current Temperature
The EVE Energy 40PL constant-current plots reveal temperature behaviour under steady loads, ideal for analysing thermal response.
Pulse Power Behaviour
The EVE Energy 40PL 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 EVE Energy 40PL mission-profile plots simulate real-world duty cycles, showing how the cell manages dynamic power demands and temperature changes.
.png)
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 EVE Energy 40PL with similar Cylindrical 21700 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
EVE Energy
EVE Energy is a leading Chinese lithium battery manufacturer
EVE Energy is a leading Chinese battery manufacturer producing advanced lithium-ion cells for electric vehicles, energy storage, and consumer applications. Their 21700 cylindrical cells combine high energy density with excellent power capabilities, meeting demanding automotive specifications. EVE's extensive product portfolio includes LFP and NCM chemistry variants optimized for different application requirements. With state-of-the-art manufacturing facilities and strong R&D capabilities, EVE supplies major Chinese EV brands and international markets. The company's focus on sustainable battery technology and manufacturing excellence has established them as a key supplier in Asia's electric vehicle ecosystem, with growing presence in European and North American markets.
Frequently Asked Questions
What is the capacity and voltage of the EVE Energy 40PL?
The EVE Energy 40PL has a nominal capacity of 4.0 Ah and a nominal voltage of 3.6 V, providing 14.4 Wh of energy per cell.
What is the maximum continuous discharge capability of the EVE Energy 40PL?
The EVE Energy 40PL supports continuous discharge rates up to 70 A, delivering exceptional power density of 3,761 W/kg.
How much does the EVE Energy 40PL weigh and what is its volume?
The cell has a mass of 67 g and a volume of 24.93 cm³.
In which industries is the EVE Energy 40PL commonly used?
The EVE Energy 40PL is used across aviation, motorsports, drones, and power tools, applications that demand both high energy and power density.
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.
