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CATL Battery Energy Storage System BESS

CATL Battery Energy Storage System

Three Advantages of CATL BESS:

Comprehensive Safety

Starting from great safety materials, system safety, and whole life cycle safety, CATL pursues every possibility to improve product safety.

Whole-life Cost Management

Thanks to features such as the high reliability, long service life and high energy efficiency of CATL's battery systems, "renewable energy + energy storage" has more advantages in cost per kWh in the whole life cycle.

Whole-process Solutions

CATL focuses on customers' demands to enhance customer experience with flexible and innovative solutions.

CATL BESS Product Structure

 catl battery

Safety is CATLs Priority

Safety Performance

CATL Battery safety

Test conditiion: no fire protection system
No propagation to other cells or other modules
No flaming, flying debris or explosive discharge of gases
Compliant with NFPA220 & NFPA 855 requirements

CATL Cell Winding

Cell Winding

Stable & reliable structure 

after long cycles

CATL Prismatic cell


Gas release at designed 

Prismatic Cell Al Can: 

no deformation/no leakage

service life >20 years 

catl battery stable chemical bonds

LFP Olivine Struc

Stable Chemical Bonds: 

Thermal Runaway:800


Safety Management

CATL safety management

Safety Management

OV/UV/OC Prevention, OT/UT Detection, Fault Diagnostics, Error Handling


SOC SOH SOP Estimation


Active Balancing, Passive Balancing


Historical Data Recording, Thermal management Low Consumption, Flexible Expansion


Voltage Measurement, Current Measurement, Temperature, Measurement

HV Safety

Contactor Monitoring, Insulation Monitoring, HVIL

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