Technology Leadership
First to Market & Best in Class Cells
Proven expertise of high quality lithium-ion batteries from IT
World’s highest volumetric energy density cells in series production
Technical Innovation
Industry’s Leading Safety
Innovative built-in safety devices & meticulous quality control
Same Dimension for Next Gen.
Technology Innovation
No changes to external dimension of standardized prismatic cells
New materials & structural innovation for longer driving range
Ni-rich cathode
Gen.1
Gen.2
Energy Capacity Increase
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New orientation of jelly roll
the only ONE without safety recall history.
Zero Tolerance on Safety through enhanced safety devices & meticulous quality control Safety recalls (’04~’13) (in number of recalls)
Fuse
0
SAFE Vent
A Company
B Company
Overcharge Safety Device
C Company
2 Separator
Positive polarity of cell housing
5 7
Nail Safety Device
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Safety Function Layer
LIB share increases as the price decreases Lead Acid : LIB = 3:7 (‘15.1Q) LIB price drop LIB penetration
( €/kWh)
is
3:7( ‘15)
reason
for
Capacity by Battery Technology
Lead Acid vs. LIB M/S Lead Acid: LIB = 7:3(‘13)
main
LIB capacity is usually less than 6kWh mainly LIB
mainly Lead acid
System(set)
[German Investment & Energy report 2015]
Battery ( kWh)
|
3
RES Systems for Retrofit market AC System or DC-direct System is suitable for ordinary Retrofit installation DC System is suitable in case of adding PV capacity or replacing PV inverter Without PV change □ No need to change existing PV DC-direct System or AC System
+
With PV change □ Need additional PV module and/or PV inverter DC System
PV Inverter
PV Inverter
DC/AC
DC/AC
+
DC/DC
AC/DC
OR DC-direct System
+
+
DC/DC DC/AC
AC System DC System
- large PV capacity (installations before 2012)
- small PV capacity (PV installation after 2012)
|
4
Competition Circumstance More players are adopting DC systems DC system will be main stream in the future
DC-direct System
DC
DC
DC
DC AC
PV PCS DC
DC system
DC
DC
DC
Hybrid PCS DC
AC system
AC
DC
System Battery
Players
Battery
DC
DC
PV PCS
DC
Enclosure (Battery only)
DC
AC AC DC
DC
DC
PV PCS DC
AC AC DC
DC
Battery
DC DC
Battery
DC/DC Converter + Battery
Inverter + BMS+ Battery
BMS + Battery
Battery
Tesla, SolarWatt
SMA, Fronius, SolarEdge, ABB, Sungrow, Kaco, Kostal, BYD LGE, LS, E3DC, Kyocera, SDI
Sonnenbattries Varta, Senec, Panasonic,
LGC, Sony, Hoppecke BMZ, Akasol
|
5
ESS Product Line
Products Residential UPS
Commercial
ESS Aplication Telecom tower
Utility
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Scope of supply in ESS application
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Battery Management System (BMS) Hierarchical structure for connection from battery to outside LIB Cell Stores energy charge/discharge
Cell
BMS
System BMS
PCS
Protection & Power Control Cell Monitoring/Safety Control
Rack BMS control Communication
Inverter/Convertor DC/AC & AC/DC
Tray BMS
Rack BMS
System BMS
PCS
Control Rack BMS Communication
PCS
Amps Volt
Voltage detection Temp detection Cell balancing
Protection Fuel Gauge Cell balancing
Temp
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Battery Monitoring Web User Interface
□ Monitoring of cell, rack, system (SOC, SOH, voltage, current, temperature) for maintenance □ Operation trends and alarm display □ System operation history retrieve (data acquisition period: ≥ 1 sec)
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Battery Safety Certifications (world wide) Location
Classification
Certification
Description
EU
CE
IEC 62133 EN 62133
Cell/Pack safety
UL 1642
Cell safety
UL 1973
Pack safety
UL 3480
Battery transportation
UN
UN 38.3
Battery transportation
Japan
JIS
C 8715-2
Cell/Pack safety
Korea
Korea Battery Industry Association
KBIA 10104-01 KBIA 10104-02
Cell/Pack safety, reliability
UL USA
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Certification Mark
Industrial Solution (Energy solution)
□ Peak shaving, Load leveling □ Sales imbalance solution (ex. difference between day ahead and real time market)
2.4 MW/ 7 MWh, Samsung SDI Cheonan Factory In 2014
2 MW/ 4 MWh, Samsung SDI Ulsan Factory In 2014
USE / GRID Charging
Before ESS (kW)
CHARGE / BACK UP Discharging
After ESS (kW)
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Charge(kWh)
Discharge(kWh)
UPS Solution (Power solution) 4.32m2 / Rack 설치 공간 Space 최소화
3.4ton
≥10years
설치 무게 Weight 최소화
0~40℃
긴 수명 Life time 시간
광범위한 Temperature 사용온도
Data Center
UPS
CHANGE / BACK UP
USE / GRID 12 / 25
BMS Battery Management &Monitoring System
Commercial Solution – UES (UPS+ESS) Developing multi-functional ESS containing UPS function to implement Critical Load Protection & Peak Shifting/Load Leveling → Minimize initial investment & pay-back period Energy Management System
ESS
U PS
System Integration (UPS + ESS) 13 / 25
Battery Technology (LIB + BMS)
UES Economical Benefit
□ Making payback for UPS operation
□ Elimination of PCS installation and operation cost □ Charging / Discharging for weekday except weekend □ Using space from replace lead acid with LIB
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FR Solution ESS helps grid system operators maintain frequency constant.
Energy storage based on lithium ion battery provides reliable and fast frequency response without being subject to fuel prices and with zero emissions.
Maintain Constant frequency
Outline
ESS
Power Grid
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□ PV generation - Daytime generation for consumption at load □ ESS operation - Charging at night and PV generation exceed load capacity - Discharging at peak-time
Specification
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Power
0.5MW
Capacity
1.1MWh (192S 26P)
Configuration
LMO 63Ah Cell, 19” Standard rack
Voltage
576~787.2V
C-rate
0.25 ~ 0.5C
Cycle life
4,000 cycle
Enclosure Module â–Ą Dimension (140S / 200S: battery stack only without outside enclosure) 610mm
1,220mm
610mm
1,066mm 1,600mm
1,600mm
2,100mm 1,600mm
140S 3P: 125kW
1,600mm
140S 6P: 250kW
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200S 2P: 125kW
Battery Management System (BMS) Detail functionality Function Measurement
Calculation
Control & Protection
Communicatio n
Tray BMS Cell voltage/temperature
Rack BMS
System BMS
◎
Rack voltage/current
◎
SOC (State of Charging)
◎
◎
SOH (State of Health)
◎
◎
Charging/Discharging control
◎
◎
Protection
◎
Cell balancing
◎
◎
UART
◎
◎
(◎)
◎
CAN 2.0B
◎
MODBUS RTU
◎
MODBUS TCP
◎
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Battery
- Cell
□ NCM based high reliability battery cell has used for both 1C continuous & 3C continuous battery system. □ The same battery cell has supplied to EV application, and qualified several automotive manufacturer. Item
CAN Type LIB
H
Unit
Specification
Dimension (bare cell)
mm
173.9 x 45.6 x 125.7
Weight
kg
1.910
Nominal Capacity
Ah
68
Nominal Voltage
V
3.70
Nominal Energy
Wh
251.6
Upper Limit Voltage
V
4.10
Lower Limit Voltage
V
2.70
Operating Temperature Range
°C
-25 to 50
Storage Temperature Range
°C
-40 to 60
Wh/L
259
Wh/kg
123
g
Max. 348
ml
Max. 283
Energy Density
L W
Amount of Electrolyte
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Battery
- Tray
â–Ą Configuration : 16 cells are connected series with BMS (Tray BMS) designed to monitor the behaviors of cells â–Ą Compatible design with 19 inch standard frame Specification
BMS
Unit
Value
Configuration
-
16S1P
Key component
-
16Cells, Tray BMS
Dimension (L x W x H)
mm
448 X 510 X 161
Weight
kg
50
Nominal capacity
Ah
68
Nominal Energy
KWh
3.97
Nominal
Vdc
58.4V
Operating
Vdc
49.6V ~ 65.6V
Continuous
KW
11.91KW (3C rating)
Max
KW
15.88KW (4C rating)
CC-CV
4.1V/Cell, 68A, 3A cut off
Voltage
Power
Charging method Power
FAN
Comm
IP grade
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UN38.3
Battery
- Rack (192S)
□ Configuration : 192S (12 trays are connected in series) string + one switchgear assembly □ Rack BMS & switchgear (for protecting and monitoring batteries) are installed together □ Trays and Switch gear are installed into 19 inch standard cabinet Specification
Unit Configuration
Value 192S1P
Key component
EA
12 Trays, 1 Switch gear
Dimension (L x W x H)
mm
533.0 x 690.0 x 2291.0
Weight
kg
~ 700
Nominal Capacity
Ah
68
Nominal Energy
KWh
47.6
Nominal
Vdc
700.8
Operating
Vdc
595.2V ~ 787.2V
Continuous
KW
119.1(2.5C rating)
Max
KW
190.6*(4.0C rating : only discharge)
CC-CV
787.2V limited, 68A, 3A cutoff
Voltage
Power
Charging method IP Grade
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IPX0(with optional side plate and back plate)
Battery
- Switch gear
â–Ą Control DC contactor operated by Rack BMS. Shunt Resistor
DC contactor x 2
Power connection from Battery
Tray communication port Fuse
Rack BMS
System BMS (Optional)
Interface Board
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System BMS Port (Optional)
Power connection to Grid
24V Aux input
Rack to Rack communication
Component
Purpose
DC contactor
Cut off charge and discharge current to protect battery
Fuse
Prevent a battery damage from external short circuit
Shunt resistor
To detect current amount
Rack BMS
Protection by control charge & discharge current flow & Calculate SOC & SOH
Battery
- Container (40 ft)
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Battery
- BCP (Battery Connection Panel)
□ LIB Rack (+), (-) connection □ Main circuit breaker □ 24VDC power supply (BMS) ① BCB : Main MCCB, input power ON/OFF ② SPD : Surge voltage protection ③ MCCB 30A : SMPS Main MCCB
①
④ MCCB 20A : INPUT, BATTERY volt meter MCCB
②
③
⑤ MCCB 15A
⑤
⑥ SMPS #1, #2, #3, #4 : 24VDC power supply to BMS
⑥ ④
※ BCB – Battery Circuit Breaker ※ SPD – Surge Protection Device ※ SMPS – Switched Mode Power Supply ※ MCCB – Molded Case Circuit Breaker
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