1. Lithium-Ion
based
Energy Storage System
for EVs to Telecom Towers
Manish Kasliwal
Director - Regional Business Planning, Strategy, M&A and Marketing
NEC APAC Pte. Ltd.
5th July, 2012
2. Agenda
▐ Energy Storage System
e-Storage market size and forecast
e-storage demand outlook
▐ ESS Technology
Key technologies in ESS
NEC’s LiB based e-Storage solutions for
• Electric Vehicles
• Telecom Towers
• Home
NEC’s e-storage technology
NEC’s achievements in Smart energy Business
▐ NEC Group and Vision
Page 2 NEC Confidential
3. Smart Grid and Energy Storage System
Heat,
Supply Side ESS (LIB)
Nuclear
Hydro Ｓｍａｒｔ
Renewal Energy Ｍｅｔｅｒ
T&D Data
Substation Center
③④
② Telco Tower
① BTS
③④
Grid Power Grid Information
ＥＶ Charger
ＣＥＭＳ Station
③④
③ ④
ＢＥＭＳ
③④ ＳＥＭＳ③ ④
ＨＥＭＳ
③④
Demand Side
ESS(LIB) roles;
① RE Stabilization ② Ancillary for demand fluctuation
③ Peak Cut/Shift ④ Back-up
Page 3 NEC Confidential
4. e-Storage - Market size (APAC region)
▐ Telecom application is the largest segment in 2011 because of the vast number of
telecom towers being installed in the region.
eStorage Market Size (2011- 2017), APAC
27%
Source: Frost & Sullivan Report, 2012
▐ Li-ion battery market to grow to 41.4 billion USD in 2020
▐ Automotive Li-ion market to grow 37% a year, vs. annual
growth of only 3% for consumer electronics batteries
Page 4 NEC Confidential
5. Energy Storage System [ESS] Market Forecast
Why Energy Storage? Applications & Technology
▐ Supply & Demand ▐ Renewable: EMS & Power Conditioning
▐ Mobility & Portability for consumer goods ▐ Automotive
▐ Reduces carbon foot print ▐ Mobility
▐ Renewable energy
▐ Increases utilization of existing assets
Page 5 NEC Confidential
7. Key Technologies in ESS and Benefits of LiB
Rechargeable batteries which can be used for energy storage are mainly Li-ion, NaS, Lead,
Nickel-Hydrogen Batteries.
Li-ion NaS Lead acid Nickel-Hydrogen
Battery Battery Battery Battery
Energy Density
(Wh / kg) 120 110 35 60
Energy Efficiency
(%) 95 90 87 90
Life
(Number of Cycle)
4000 4500 200-2000 1000
- High energy density -Long life - Rapid charge and
- High energy - Long life - Proven technology discharge
Advantages efficiency - Low price - Confirmed method - Resistance to
- Rapid charge and - Resourceful (Na, S) of Recycling of the overcharge and over
discharge battery discharge
-High price of
- Danger of Organic
Disadvantages electrolyte
- Exothermic danger - Low energy density hydrogen storing alloy
-Exothermic danger
Source: Japanese Agency for Natural Resources and Energy, 2009 & NEC’s research
NEC Confidential
9. NEC’s Li-Ion based Energy Storage Solutions
Trials continue with partners.
Supply Side Demand Side
Apt. Houses -
Generation Distribution Business facilities
Buildings Stores
Power Peak shave Peak shave Peak shave
Application Ancillary
Stabilization Load shift BEMS HEMS
System Scale 3～100MWh 30～150MWh 100KWh～10MWh 50～300KWh 3～15KWh
Contractors
Client, Partner Power company Utility Biz. Facility Apartments Convenience
store
METI trials Joint trials NEDO trials
Initial Micro grid in EPRI in US Biz.Dev/Search
Residential
at Yokohama
Business Indonesia ENEL in Italy (Japan) storage system
Distribution,
Heat, hydro, Commercial bldg, Apartment Bldg. Housing,
substation
NEDO: nuclear power factory, data center Retail
New Energy
and Industrial
Renewable Renewable
Technology
energy energy
Development
Organization
ＩＣＴ
Battery Storage
System
Page 9 NEC Confidential
10. For Electric Vehicles
Launch and Ramp Business through Nissan Partnership
ＡＥＳＣ
NEC Energy Devices (Automotive Energy Supply.)
49% 51%
Investment Investment
(Factory: Electrode (Factory: Zama) Battery
Sagamihara) Automotive Battery
Electrode Production
Production Electric Vehicles
Mass prod. started
7/23/2010
Electrode Cell Module Pack
Page 10 NEC Confidential
11. For Telecom Towers
Energy Management Server PV Air Conditioner
System
Controller
ＥＭＳ Server
DC/DC
BTS Utility Grids
AC/DC
C DC/DC ＡＣ
O
N
T
ＡＣ Line
R
O BMU ＤＣ Line
L Signaling Line
L
E
Unit
Unit
R
・・ Diesel Generator
Pack
ＡＣ
LIB
Page 11 NEC Confidential
12. For Home
▐ NEC’s support centre can monitor Li-ion battery remotely
NEC’s support centre
Monitoring
service
Solar panel
NEC’s
cloud
Grid
Power conditioner
Distribution
Distribution board
board
Internet Router for general
for
important
System
home home Controller
appliances appliances
Li-ion battery
for home
Power-supply
line Operation
( for important
home Panel
appliances)
General home appliances Important home appliances
Power-supply
line
( for general
home
appliances)
Communication
5.6 kWh
line (Already sold in Japan)
NEC Confidential
13. Key Features of NEC’s Li-Ion Technology
▐ Manganese Spinel Cathode Material
Greater resistance to overcharge
and high thermal stability
Abundant material deposit
compared with Co and Ni
▐ Laminated Cell Structure
Low internal resistance and high
heat dissipation allows less heat
generation than a cylindrical cell
▐ Proven Reliability as a Large- Capacity Auto Batteries
Safety& Long Life of more than 100,000 km has been proven by Nissan’s HEV Test
Mass Production Quality has been achieved with Subaru Plug-in STELLA
Page 13 NEC Confidential
14. Manganese Spinel Cathode Material
▐ NEC realized lifespan of Manganese Spinel Cathode Material longer.
▐ It’s possible to reduce cost involved in procuring materials due to
Manganese’s abundant material deposit
Table. Comparison of cathode electrode materials
Page 14 NEC Confidential
15. Laminated Cell Structure
▐ NEC’s laminated cell realizes;
• Low internal resistance
• High heat dissipation
• Lighter battery
• Flexibility of the shape of the design
External view of the 32Ah cell for the energy storage
application
Fig. Laminated cell structure
Page 15 NEC Confidential
16. Lifetime Extension Technology for Li-Ion Secondary
Batteries
Fig. Result of cycle test
External view of the of the developed LiB Table. Specification of the developed Li-ion battery
Page 16 NEC Confidential
17. Key Components of ESS
Power Grid
or Home
PV
AC
Power Conditioning System
Power Conditioning Transform AC and DC
System System
Controller DC
Battery Management Unit
System Controller Battery Management Unit Keeping safety of battery,
Observation, Control,
Controlling balance of electricity
Record, Monitor
Cell
Package of Energy storage High level of security,
system Cell Long-life, High density
High density package, Heat- of energy
resistance, Environment of
outdoor-resistance
Pack Pack Pack
Pack
High density package,,
Heat-resistance
Page 17 NEC Confidential
18. NEC’s Measures and Achievements in Smart Energy
Business
EV Charging Power Supply
Electric Vehicle Smart House Store BEMS(*)
Infrastructure Side
Launched cloud supported home energy storage system
Development and field trials of distributed energy management and control
system technology using storage batteries with ORIX Corporation
Began demonstration project for Battery and Charger Integration Systems for
Strategic partnership
next generation service stations as part of Yokohama City’s “Yokohama Smart
with Enel Distribuzione
City Project”
on the development of
Next-Generation Smart Developed new technology which doubles life of manganese Li-ion
Grid system rechargeable battery
Survey the deployment of energy
management technologies for
mobile phone base stations in India
BEMS (*) : Building Energy Management System
Page 18 NEC Confidential
19. NEC Group Overview
Sales: Over 38.2 billion US dollars (ending March 2012)
Employees: Over 133,070 worldwide
Sales By Segment
Electric
Devices,
IT Services
Others
26.9%
26%
7.3%
8%
Personal
Solution
21.7%
25%
Platform
Social 12.2%
12%
Infrastruct Carrier
ure Network
10.8%
10% 20.8%
19%
Page 19 NEC Confidential
20. NEC Group Vision 2017
To be a leading global company leveraging the power of innovation
to realize an information society friendly to human and the earth
NEC Confidential
