Project Description

GeePower® 576V 500AH Lithium LiFePo4 Battery Pack is assembled by 180pcs 3.2V 500AH GPLFP8081238 LiFePO4 battery cells in series.

GeePower®3.2V 500AH Deep cycle lithium high capacity battery pack can be used to Electric vehicles and other energy storage areas. These Lithium Iron Phosphate (LiFePO4) batteries, produced by GeePower here in  China, are rated at more than 2000 recharge cycles, can be assembled in series and parallels with a battery management system (BMS).

The Lithium Iron Phosphate Battery is a type of rechargeable battery based on the original lithium ion chemistry, created by the use of Iron (Fe) as a cathode material.
Already passed all of the safety tests(overcharge, overdischarge, over temperature, short circuit, drop, Crush, Needle puncture tests, etc). These battery cells do not catch fire, no explosion and no leakage.

GeePower Electric Bus Battery Advantages

  • 30years experience in rechargeable batteries
  • 10 years experience  in Lithium batteries
  • geepower® battery can be above 2000 recharge Cycles
  • poor electrolyte, can be operated in any directions
  • can be discharged at high current(up to 5C), charge current(up to 3C)

576V 500AH Electric Bus Battery Specifications

576V 500AH Electric Bus Battery 
Model Number G-BP576500 576V 500AH
Nominal Voltage 576V
Rate Capacity 500Ah@0.5C3A,20°C
Operating Current 30Amps (can be customized)
Peak Current 100Amps (can be customized)
Charge Voltage 675V
Standard Charge Current 7Amps
Cycle Life > 2000 times
Dimensions 120*195*360mm
Weight 2880kg
Battery Box Material Steel plate
Built in Battery Cells 3.2V 60AH LiFePO4 cells
Battery cells model number GPLFP13192320
Assembly 180 cells in series
Operating temperature -20°C ~ 60°C
Charge temperature 0°C~ 45°C
Storage temperature -20°C ~ 45°C

 

3.2V 500AH Electric Bus Battery Cell detailed image

Electric Bus Battery

Electric Bus Battery

Item Description Dimensions(mm)
S Screw(S) M12*20
T Thickness(T) 84.0±1.0
W Width(W) 330.0±1.0
L Length(L) 379.5±1.0
C Tab center distance(C) 220.0±1.0

 

GeePower Electric Bus Battery Image

GeePower Electric Bus Battery

GeePower Electric Bus Battery

GeePower® 576V 500AH Electric Bus BMS

In electric vehicles, BMS is an important component of electric control system of complete vehicle, which communicates with complete vehicle controller, intelligent charger and instrument through CAN bus, realizing safe, reliable and effective management of battery system. The complete vehicle controller reads BMS data through CAN bus, controls motor through intelligent motor controller, displays data on instrument panel and communicates with intelligent charger through BMS to realize intelligent charging control. The BMS anti-interference performance is very important for hybrid and pure electric bus. The strongelectromagnetic interference will influence the normal operation of BMS. In order to solve the problem fundamentally, EK-FT-11 BMS adopts the design of multiple electromagnetic compatibilities and isolations, which has effectively shielded the
electromagnetic interference and maintained the normal operation of system. The automotive class processor chip, automotive class CAN bus and high redundancy circuit have improved the safety, stability and reliability of system remarkably.
The typical electric vehicle BMS is mainly composed of one Battery cluster-management unit (BCU), several (5-10) battery monitoring units (BMC) and one insulation detection module (LDM).

Technical Features

• Management of operation authority — BMS system can set and modify battery operation protection parameters and alarm constant value and so on through touch screen and has the encryption management of operation authority. Any operation which changes system parameters needs authority confirmation.

• High-capacity data storage — support data storage capacity of 8G; can record all performance parameters of power battery and dispatching events of battery pack for long time; users can import data into computer quickly for later analysis through USB interface.

• Strong anti-interference —  the model selection of all critical elements meets the model selection requirem automotive class element; effective isolation and filtering have been done for input and output; the peanti-electromagnetic interference has reached to harsh level.

• Heat management with high resolution —  the system has multiple temperature management strategies, such as temperature difference management and high/low temperature limit management and so on, and double management of cooling and heating, which ensures that system can operate within comfortable temperature section and prevents extreme events as battery self-ignition and so on.

BMS Structure

GeePower electric vehicle BMS is composed of Battery cluster-management unit (BCU) and multiple Battery monitor unit (BMU), display screen (LCD), insulation detection module (LDM), heavy-current control system (HCS), current sensor (CS) and wiring harness.

Electric Bus Battery

Electric Bus Battery Solution

System Configuration

Electric Bus Battery

Electric Bus Battery Solution

Brief Introduction of Function

In this system, BCU module carries out real-time communications with multiple BMU modules and LDM (insulation detection module) through CAN bus to gain system parameters, such as single cell voltage, box temperature and insulation resistance and so on, collects charging and discharging current through current sensor, calculates SOC dynamically and displays related data through touch screen. BCU manages system after gaining comprehensive information of battery pack through calculation and analysis, respectively interacts with ECU, motor controller and charger and so on  intelligently through independently CAN bus and can realize the secondary protection of charging and discharging through relay control to meet diversified safety control demands of customers, ensuring stable and effective operation of system.

Technical Specifications

Electric Bus Battery

Battery Cluster-management unit (BCU) Function

• SOC estimation: use Joint EKF algorithm to estimate SOC of battery pack dynamically.

• Current detection: carry out real-time detection of current in charging and discharging circuits through Hall current sensor.
• Communication function: externally installed 3 CAN interfaces, which can be used to communicate with BMU, complete vehicle controller and charger and so on to exchange voltage, temperature, fault code, control command and other information.

• Alarm and protection: when there is fault as over-charge, over-discharge and so on, BCU can perform the corresponding alarm and protection according to fault status and display it on LCD screen.

• System expanding: BCU supports multiple channels of active/passive node output and can realize two-level control management through CAN communication and relay to ensure effective isolation of strong and weak current and meet diversified safety control demands of customers.

Parameters of BCU module

Electric Bus Battery

Insulation Detection Module (LDM) Function

LDM is used to detect whether the battery pack has electricity leakage on vehicle body. LDM receives the command from BCU through serial bus and transmits the detected data information to BCU, which then will deliver LDM status to display screen. Method to judge whether the battery leaks electricity onto vehicle body: respectively detect whether the insulativity between positive/negative pole of vehicle-mounted battery and body shell is more than 500Ω/V.

Electric Bus Battery

Display Screen (LCD) Function

The display screen is human-machine interface for displaying system operation status. All its models are designed according to industrial standard and suitable for applying in various conditions. The display interface of LCD can display all operation parameters and faults of system.

Status description of LCD

The operation indicator of display screen includes three ones: power supply (PWR), running (RUN) and communication (COM). When the display screen is powered on, the power indicator (PWR) is normally on; if the running indicator (RUN) is normally on in yellow, it stands for normal running of display screen; if the running indicator (RUN) is not on, it means that the display screen has fault; when the display screen has connected with BMS, the communication indicator (COM) flashes in yellow.

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LCD Display Interface image

Electric Bus Battery

Model Selection Table of LCD

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Installation Dimension and Weight of BMS

Electric Bus Battery

BCU Interface Description

Electric Bus Battery

BMU Interface Description

Electric Bus Battery

LDM Interface Description

• Front interface of LDM

Electric Bus Battery

• Back interface of LDM

Electric Bus Battery

5.7″ LDC Interface Description

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CS Interface Description

Electric Bus Battery

BMS Wiring Diagram

Electric Bus Battery

Cable Type

Electric Bus Battery

 

Get in Touch

More info about our company and our batteries, please feel free to contact with us, our team is ready to support you.

Phone: +86-769-85373696 or +86-769-85373969

Mobile: +86-13712928276

Skype :amy_heliling