Cylindrical 21700 Cell
Lishen 2170LE
Cylindrical 21700 cell delivering 5 Ah capacity with 257 Wh/kg energy density and 5 A maximum discharge rate.
Overview
The Lishen 2170LE is a lithium-ion cylindrical 21700 cell designed for applications that demand reliable performance and competitive energy storage. Released in 2024 and with the manufacturer based in China, this cylindrical 21700 cell delivers 5 Ah capacity and 18.0 Wh of energy at a nominal voltage of 3.6 V, with a maximum continuous discharge capability of 5 A, making it well suited to energy-focused applications requiring extended runtime. The 2170LE prioritises energy storage over peak power, with discharge limited to 1.0 C and a gravimetric energy density of 257 Wh/kg above the median for its format class in the Voltt library.
Key Features
Discharge rate: 5 A continuous (1.0 C)
Charging rate: 1.0 C charging rate
Energy density: 257 Wh/kg
Power density: 257 W/kg
Applications: aviation, e-mobility, energy storage
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Lishen
Model
LR2170LE
Type
Li-ion
Form factor
Cylindrical 21700
Country of origin
China
Release year
2024
Nominal voltage
3.6
Energy capacity [Wh]
18
Capacity [Ah]
5
Gravimetric energy density [Wh/kg]
257
Gravimetric power density [W/kg]
Max continuous discharge [A]
Volume [cm³]
25.19
Mass [g]
70
Positive electrode (cathode)
Negative electrode (anode)
Value
Applications & Use‑Cases
The Lishen 2170LE 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.
.jpg)
Performance & Model Data
Below are modelled performance metrics for the Lishen 2170LE across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
Access Lishen 2170LE constant-current discharge curves in Voltt to size your pack against the voltage window your system actually needs. (Chart shown is illustrative, not 2170LE data.)
Constant Current Temperature
Access Lishen 2170LE thermal discharge data in Voltt to specify cooling and cell spacing before you commit to a pack layout. (Chart shown is illustrative, not 2170LE data.)
Pulse Power Behaviour
Access Lishen 2170LE pulse power maps in Voltt to set peak current limits and parallel count for your worst-case load. (Chart shown is illustrative, not 2170LE data.)
Dynamic Profile Response
Access Lishen 2170LE 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 2170LE data.)
.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 Lishen 2170LE 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-backed lithium-ion cell manufacturer
Tianjin Lishen Battery was incorporated in 1997 and was China's first dedicated lithium-ion cell research and manufacturing company, now operating as a state-holding enterprise. It produces cylindrical, prismatic and pouch cells across lithium iron phosphate and nickel-based chemistries, supplying electric vehicles, stationary energy storage, consumer electronics and industrial equipment. Its large-format prismatic cells are aimed at grid-scale storage and commercial vehicle programmes, where cycle life and cost per kilowatt hour govern selection. State backing and long-established capacity give it stable supply for domestic manufacturers and export customers. Lishen's relevance lies in its production record, which is among the longest of any Chinese cell manufacturer.
Frequently Asked Questions
What is the capacity and voltage of the Lishen 2170LE?
The Lishen 2170LE has a nominal capacity of 5 Ah and a nominal voltage of 3.6 V, providing 18.0 Wh of energy per cell.
What is the maximum continuous discharge capability of the Lishen 2170LE?
The Lishen 2170LE supports continuous discharge rates up to 5 A, delivering a power density of 257 W/kg.
How much does the Lishen 2170LE weigh and what is its volume?
The cell has a mass of 70 g and a volume of 25.19 cm³.
In which industries is the Lishen 2170LE commonly used?
The Lishen 2170LE 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 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.
