introduction of narada li-fepo4 battery

Introduction of Narada LiFePO4 battery

An Expert of Lithium battery Solutions.

April.13.2016

Narada lithium battery

Stored Energy Solutions for a Demanding World!

Product applicationWhat we do

To be whole solution provider in Telecom, motive power and energy storage

Motive power

Telecom & IDC Energy storage


• 70% site will be outdoor

• Outside temperature will be high through the year

• The power is rough with some sites

• Available cabinet have small space but need more capacity

• Serious theft situation

Why we want Lithium battery in telecom


Item LiFePO4 NMC NCA

Nominal voltage (V) 3.2 3.7 3.6

Voltage range (V) 2.5-3.8 2.8-4.2 2.8-4.2

Specific energy (Wh/kg) 90-120 150-220 200-260

Charge rate 1C typical, 3C on some cells 0.7-1C typical 0,7-1.0C typical

Discharge rate 1C typical, 25C on some cells 0.5C typical, 3C on some cells 1C typical, 3C on some cells

Cycle life Above 3000 1500-2000 500-1000

Thermal runaway270°C (518°F) Very safe even if

fully charged

210℃ (410℉) typical. High charge

promotes thermal runaway

150°C (302°F) typical, High charge

promotes thermal runaway

Application

Portable and stationary needing

high load currents and endurance

Telecom/ESS/EV

Provides high capacity and high

power such as EV

EV/ESS/Telecom

Medical devices, industrial,

EV (Tesla)

Why we choose LiFePO4 battery in telecom


Snapshot of LFP Snapshot of NMC Snapshot of NCA

Why we choose LiFePO4 battery in telecom

LiFePO4, best choice in telecom

NPFC Product introduction

Products:

LiFePO4 Lithium Battery

Type：

48NPFC series

Application:

Telecom, Energy storage system

What is our product

Model Specification H×W×D (mm)

48NPFC10 48V 10Ah 442*245*44 (1U)

48NPFC20 48V 20Ah 442*245*88 (2U)

48NPFC30 48V 30Ah 442*245*132.5 (3U)

48NPFC50 48V 50Ah 442*390*132.5 (3U)

48NPFC70 48V 70Ah 442*450*132.5 (3U)

48NPFC75 48V 75Ah 442*400*220 (5U)

48NPFC80 48V 80Ah 442*400*220 (5U)

48NPFC100 48V 100Ah 442*400*220 (6U)

Serials SpecificationWhat is our product

Cell: 15 cells series connection

BMS: Integrated Monitor/ protection

Connection system: power line & signal line

The composition of batteryWhat is our product

The composition: CellWhat is our product

NLC36130208PFPrismatic cell

15 cells into one group

Cell

Barcode

Heat shrink tube

NLC36130208PF specificationWhat is our product


Prismatic cell designWhat is our product

Positive/Negative terminalCell cover

Cell tabs

Aluminum case

Cell group: Positive:LiFePO4 platesNegative: Graphite plates Separators: Organic material

Safety valve


• High safetyOver Charge 3C/10V Nail Penetration

Before Test

After Test

Before Test

After Test

Under Test

After Test

Under Test

Heating test : 130℃ /30 min

Cell safety testWhat is our product

BMS Job: Make Battery Reliable And Safety !

1. Various protected function

2. Monitor voltage/current/temperature

3. high-efficiency cell balance function

4. LCD Display function

5. Dry contact function

6. Charge current limited function

7. Dormant function

8. Multiple communication interface

9. Narada customized/Modbus protocol

10. Maintenance management

11. Provide PC software to visualized operation

What is BMS Job？


Monitor

1. Single cell voltage

2. Module voltage/current

3. Module capacity

4. Module/ambient

temperature

5. Charge/discharge

current…

Protection

1. Cell over/under voltage

2. Module over/under voltage

3. Over/under temperature

4. Charge/discharge over-

current

5. Short-circuit

6. Communication fail

7. …

Communication port

1. RS232

2. RS485

Built-in BMS functionWhat is our product

BMS protection parameterWhat is our product

BMS function Description Active point

Single cell over-charge

Over-charge protection threshold voltage

3.80±0.02V

Over-charge protection delay time 1.0-2.5s

Single-cell over-discharge

Over-discharge protection threshold voltage

2.80±0.02V

Over-discharge protection delay time

1.0-2.5s

Discharge recover threshold voltage 3.1±0.02V

Module over charge

Over-charge protection threshold voltage

56.0±0.3V

Over-charge protection delay time 1.0-2.5s

Over-charge recover threshold voltage

54.5±0.3V

Module over discharge

Over-discharge protection threshold voltage

42±0.3V

Over-discharge protection delay time

1.0-2.5s

Discharge recover threshold voltage 48.00±0.02V

Over current protection

Over-current protection delay time 1 in discharge

5.0±2s

Over-current protection 2 in discharge 90±4A

Over-current protection delay time 2 in discharge

500±50ms

Over-Current protection in charge 50±3A

Short circuit

Short circuit protection 150±10A

Protection conditionLoad short

circuit

detection delay time About 500us

Recover conditionLoad cut-off /

charge module

Over Temperature

protection

High temperature protection in charge 70±3℃

Recover temperature in charge 60±3℃

High temperature protection in discharge 70±3℃

Recover temperature in discharge 60±3℃

Low temperature protection in charge 0±3℃

Recover temperature in charge 5±3℃

Low temperature protection in discharge -10±3℃

Recover temperature in discharge 0±3℃


ADD switch

SOC light

AlarmRun

RS232 MaintenanceReset2*RS485

Waterproof Louver

Steel handle

Terminal

Battery interfaceWhat is our product

No. Name Functions Remark

1 SOC Indicators for capacityThere are four green LED lights in front panel indicating SOC. SOC is short for state of charge. Each SOC LED light

represents 25% of rated capacity

CapacityLED Status

● ● ● ●

LED1 LED2 LED3 LED4

0-25% ON OFF OFF OFF

25%-50% ON ON OFF OFF

50%-75% ON ON ON OFF

75%-100% ON ON ON ON



4 ADDAddress of

communication

ADD is applicable to modules connected in parallel. ADD consists of four binary bits, and maximum quantity of

batteries connected in parallel is 16pcs .


2 ALM Indicator for alarms There is one red LED light in front panel indicating alarms.

3 RUN Indicator for running status There is one green LED light in front panel indicating running status

Battery Status IndicatorRUN ALM SOC

Remark● ● ● ● ● ●

OFF or sleep mode / OFF OFF OFF OFF OFF OFF ——

Idle Normal0.25S ON3.75S OFF

OFF Battery SOC

Charge Normal0.5S ON0.5S OFF

OFF Battery SOC

Discharge Normal Continuous on OFF Battery SOC

Charge/discharge/Idle Protection According to battery

statusFlash ON OFF

Over-voltage under voltage ALM not flash

Charge/discharge/Idle BMS Fail OFF Continuous ON OFF Hardware fail



5 RS232 Up-link communication portIt is adopting RS-232 series port to upload data, it only support single

battery communication. Also use for upgrading BMS firmware.

6 RS485Cascading communication

portIt is adopting RS485 series port communication pattern to upload data. It

can support multiple battery paralleling communication

RJ45 pins Definition

1 GND

2 RS485_A

3 RS485_B

4,5,6,7,8 Void



7 RESET Reset buttonPress RESET button when abnormity occurs to assure stability of battery

performance.

8 Dry contact Dry contact indicators

Failure Alarm: indicate BMS or battery fail including but not limited to charge and discharge MOS fail, cell voltage under 0.5V, NTC disconnect.

Protection Alarm: Output short circuit, charge and discharge over current, charge and discharge over temperature/low temperature.

9 Power switch ON/OFF switchWhen turn-off, battery get into sleep mode, and cut-off output, the alarm

output also will be stopped.



10 Battery Output Terminals for battery outputUsing terminals with four cores. Polarities are +, -, +, - from left to right.

The two ‘+’ and ‘-’ are equal relatively

11 LCD (optional) Display battery information Battery status, cell status, firmware version, protection/alarm

12 GND Ground screwConnect earth by flexible cable above 16AWG through earth connecting

hole on right side of cabinet back, assure well connection.


13Maintenance

InterfaceUsed for battery

maintenance

Using for measure cell/cells voltage and resistance.

Charge cell/cells directly with 2A current max.


Flexible InstallationWhat is our product

Four direction installation

PC software setting


• We provide 485_to_USB adapter data cable. This module converts

485 signal to USB signal for PC.

ToolsWhat is our product


PC interfaceWhat is our product

Application Demo


LiFePO4 Battery

Electric Vehicle

Start-stop

Energy storage

Telecom

Application


• 2010 Start provide Li-ion power solution to China Telecom and China Mobile

• 2011 Win current order from China Mobile

• 2012 Battery was deliveried to more than 4000 sites in China

• 2013 Sales volume USD32million

Inida 4G project-40000 sites

Narada is the first approved supplier Narada has gotten order of 23000 modules Total amount is 28million Expect sale volume of 2013 will be 33000 modules

Rich experience on LFP solution What is our product


Rich experience on LFP solution

Operator: China TelecomSite :Sichuan DeyangAmbient: OutdoorSystem: 48V/10Ah

Operator: China TelecomSite : NantongAmbient: OutdoorSystem: 48V/10Ah



Operator: China MobileSite : ChongqingAmbient: OutdoorSystem: 48V/200Ah



Operator: Narada South Grid

Project: Energy storage

Capacity: 70KWh

Passageway

Outdoor

LV well

Passageway

FTTB/FTTO

Application - Telecom

FTTC



Before installed

RRU


After installed


China Mobile WLAN


48V/80Ah 2000VA system



Operator: China Telecom

Project: IDC

Ambient: Indoor


Database

Narada E-Vehicle modules for GEMSEA

Customer GEMSEA

Rated Voltage 461V

Rated capacity 74Kwh

Cells quantity 144 *2 strings

Cell technology Li-Iron

Cell capacity 80Ah

Application E-bus

Narada E-Vehicle modules for Dongfeng Truck

Customer Dongfeng Motor Co., Ltd

Rated Voltage 340V

Rated capacity 36kWh

Cells quantity 92*15 strings

Cell technology NMC

Cell capacity 7Ah, pouch cell

Application E-Truck

NISSAN EV pick-up vans for communication maintenance

Item Unit Parameter

Cell Type / 60Ah（LFP）

Nominal voltage V 336

Voltage range V 262.5~383

Nominal energy Kwh 60.5

Mileage Km 280

Battery pack Battery box1+

battery

box2+battery

box 3

10S3P+10S3P+22S3P+63S

3P=105S3P

Additional battery

Box

/ Remove the rear seat and

add battery box, which can

increase battery energy, and

cargo space


Narada Energy Storage System

Brief introduction

Narda ESS is a smart management system of

energy, ideally for micro-grid solutions, in order

to smooth power, track grid load and shave peak


Lin'an city, Zhejiang province, China

Narada hybrid storage

Project highlights

The original hybrid storage system with both VRLA and

LFP batteries, controlled by integrated heat management

• PV generation: 57KWp

• Storage capacity: 2MWh

• VRLA capacity: 1.5MWh

• LFP capacity: 400KWh

• Project date: 2011.07

Application – Energy storage

Energy storage system for PGCIL (POWER GRID CORPORATION OF INDIA LIMITED)

19.2V/ 150Ah for each module

50

Battery Thermal Management Technology

Containerized battery thermal management system( temperature difference < 5˚C at the cell level

Air conditioners

Air inlet

Thanks!

introduction of narada li-fepo4 battery

Engineering