Cylindrical 21700 Cell
Lishen LR2170SA
Cylindrical 21700 cell delivering 4 Ah capacity with 209 Wh/kg energy density and 4 A maximum discharge rate.
Overview
The Lishen LR2170SA is a lithium-ion cylindrical 21700 cell designed for applications that demand reliable performance and consistent capacity delivery. Released in 2018 and with the manufacturer based in China, this cylindrical 21700 cell delivers 4 Ah capacity and 14.6 Wh of energy at a nominal voltage of 3.65 V, with a maximum continuous discharge capability of 4 A, making it well suited to energy-focused applications requiring extended runtime.
Key Features
Discharge rate: 4 A continuous (1.0 C)
Charging rate: 1.0 C charging rate
Energy density: 209 Wh/kg
Power density: 209 W/kg
Applications: aviation, e-mobility, energy storage
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Lishen
Model
LR2170SA
Type
Li-ion
Form factor
Cylindrical 21700
Country of origin
China
Release year
2017
Nominal voltage
3.65
Energy capacity [Wh]
14.6
Capacity [Ah]
4
Gravimetric energy density [Wh/kg]
209
Gravimetric power density [W/kg]
Max continuous discharge [A]
Volume [cm³]
26.78
Mass [g]
70
Positive electrode (cathode)
Negative electrode (anode)
Value
Applications & Use‑Cases
The Lishen LR2170SA is well suited to the following applications due to its cylindrical 21700 form factor and high energy density 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.
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.
Energy Storage: Requires stable cycle life across deep discharge profiles, reliable calendar life under float conditions, and consistent capacity retention over extended deployment periods.
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 Lishen LR2170SA across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
The Lishen LR2170SA constant-current plots reveal voltage behaviour under steady loads, ideal for analysing efficiency.
Constant Current Temperature
The Lishen LR2170SA constant-current plots reveal temperature behaviour under steady loads, ideal for analysing thermal response.
Pulse Power Behaviour
The Lishen LR2170SA 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 Lishen LR2170SA 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 Lishen LR2170SA with similar Cylindrical 21700 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
Lishen
Lishen is a Chinese state-owned lithium-ion battery manufacturer
Lishen Battery is one of China's largest and oldest lithium-ion battery manufacturers, founded in 1997 and headquartered in Tianjin. As a state-backed enterprise, Lishen supplies cylindrical, prismatic, and pouch cells for electric vehicles, energy storage, and consumer electronics. Their extensive product range spans LFP and NCM chemistries, with large-format prismatic cells targeting grid-scale storage and commercial EV applications. Lishen's manufacturing scale and government backing provide stable supply chain capacity for domestic Chinese OEMs and international markets. The company's R&D focus on high-energy-density and long-cycle-life cells positions them as a significant contributor to China's battery industry development.
Frequently Asked Questions
What is the capacity and voltage of the Lishen LR2170SA?
The Lishen LR2170SA has a nominal capacity of 4 Ah and a nominal voltage of 3.65 V, providing 14.6 Wh of energy per cell.
What is the maximum continuous discharge capability of the Lishen LR2170SA?
The Lishen LR2170SA supports continuous discharge rates up to 4 A, delivering a power density of 209 W/kg.
How much does the Lishen LR2170SA weigh and what is its volume?
The cell has a mass of 70 g and a volume of 26.78 cm³.
In which industries is the Lishen LR2170SA commonly used?
The Lishen LR2170SA is used across aviation, e-mobility, energy storage, applications that demand high energy density and consistent performance over extended cycles.
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.
