sanyo 26th international battery seminar

Copyright(C) SANYO Electric Co.,Ltd. 2009

Akira Kinoshita

SANYO Electric Co., Ltd.

Technology Management Department

Mobile Energy CompanyLithium-Ion Battery Division

Development of

Sanyo Li/Ion Batteries


01970 1980 1990 2000 2010

’’6464

’’9494

’’9090

2’’9999

4

Billionpcs

NiNi--CdCd

NiNi--MHMH

PolymerPolymer

LiLi--IonIonFor Portable Products

For Telecommunications

For High-Power Vehicles

Growing of Rechargeable Battery Market


High power

HEV

Robot

Electric assisted bicycle

Cordless equipment

Power tool

Notebookcomputer

Digital camera

PDACellularphone

VCR

High capacity

Applications of Lithium Ion Batteries


1. We are leader to develop attractive batteries based on　　advanced technology.

2. We have confidence of providing high quality products because we have a lot of experience and know-how based on technology, quality control and manufacturing through actual results.

FeaturesFeatures of SANYOof SANYO’’s Lithium s Lithium IIon Batteries on Batteries [1][1]

3. We have many kinds of cells, that is, various sizes and capacity.


4. We have No.1 production capability. * production capability : over 70 million cells per month.

5. We have about 30% share in the Li ion market with steady and proactive approach.

FeaturesFeatures of SANYOof SANYO’’s Lithium s Lithium IIon Battery on Battery [2][2]


SANYO Li Ion BatteryDevelopment Trend

SANYO Li ISANYO Li Ionon BBatteryatteryDevelopment TrendDevelopment Trend


SANYOSANYO’’s Lithium s Lithium IonIon Battery Development Concept Battery Development Concept

valuable batteryvaluable battery developmentdevelopment

CoReduction

（Low Cost）

High Capacity

HighPower

High SafetyHigh Safety

Differentiation of the technologDifferentiation of the technologyy


Current ModelTyp.2600mAh

Typ.2Typ.28800mAh Model00mAh ModelPrevious ModelTyp.2400mAh

Higher Capacity High capacity

Typ.2000mAh ModelTyp.2000mAh ModelTTyp.2250mAhyp.2250mAh ModelModel

Co Reduction

High Power

Typ.1200mAh ModelTyp.1200mAh ModelTyp.1600mAh ModelTyp.1600mAh Model

Development Trend of Development Trend of CCylindrical Cell (18650ylindrical Cell (18650--size)size)

More More Capacity Capacity

More More Power Power


Development Trend of Prismatic Cell Development Trend of Prismatic Cell

Current modelMin.800mAh

Previous modelMin.750mAh

with UF463443 size

*Robust model

Higher Capacity

Higher Cost Performance

High capacity

More More Capacity Capacity

Min.840mAh Min.840mAh

600mAh 600mAh ～～


UF383551UF463450UF553450UF653450UF103450UF423643

Development Trend of Prismatic Cell [1]Development Trend of Prismatic Cell [1]

UF463048UF553048UF653048UF463446UF503445UF553446

Low Height ModelLow Height ModelStandard ModelStandard Model

Small ModelSmall Model

UF383543UF463443UF553443UF603443

UF503436UF553436UF653436UF583136

UF752836UF613756UF453846

Large Foot Print ModelLarge Foot Print Model

We have various size lineup as satisfying customer’s needs.

UF534042UF634042

... and several models are under developing.... and several models are under developing.


Development Trend ofHigh Capacity BatteriesDevelopment Trend ofDevelopment Trend of

High High CCapacity Batterapacity Batteriesies


Trend of Energy Density of cylindrical LiTrend of Energy Density of cylindrical Li--ion battery ion battery

700Volumetric Energy Density (Wh/l)

350300250 400 450 500

1995

1994

1996

19982000

20012002

550

Current Generation : Current Generation : LiCoOLiCoO22--GraphiteGraphite

20052005

Typ.2600mAh

600 650

over 3000mAh

New GenerationNew Generation : : Challenge by using Challenge by using

new materialsnew materials

Typ.2800mAh

Gra

vim

etric

Ene

rgy

Den

sity

(Wh/

kg)

* Energy density is calculated with Min. capacity value

20082008

Typ.1260mAhTyp.1370mAh

Typ.1420mAh



Typ.2400mAh

100

125

200

150

175

225

Charging voltage: 4.10 to 4.20V

new cathode materialnew cathode material

2004


Cathode Material Capacity Safety

LiCoO2 ★★★ ★★

LiNiO2 ★★★★ ★

LiMn2O4 ★ ★★★★

Li(Ni-Mn-Co)O2 ★★ ★★★

High voltage Charged

Candidate of Cathode for High Voltage ChargeCandidate of Cathode for High Voltage Charge


Li(Ni-Mn-Co)O2

Higher Thermal StabilityHigher Thermal Stability

Improved LiCoO2

Synergy EffectSynergy Effectby mixing two materialby mixing two material

High Voltage ChargeHigh Voltage Charge

Achieve high capacityAchieve high capacitykeeping safety and operating voltagekeeping safety and operating voltage

High Capacity High Capacity High Packing DensityHigh Packing Density

Concept of New Cathode Material [NeoConcept of New Cathode Material [Neo--Hybrid Cathode)Hybrid Cathode)


Comparison of High Capacity Models (UR18650ZT)Comparison of High Capacity Models (UR18650ZT)

UR18650F(Typ. 2.6Ah) UR18650ZT

Cell size 18 X 65mm 18 X 65mm

Capacity(mAh) Typ. 2600mAh Typ. 2800mAh

Capacity(Wh) Typ. 9.62Wh Typ. 10.36Wh

Cathode activematerial

LiCoO2LiCoO2

Li(Ni-Mn-Co)O2

Charge &discharge voltage

Charge: 4.2VDischarge: 3.0V


Weight Typ. 45.5g Typ. 46.0g

Safety Level Same


0 400 800 1200 1600 2000 2400 2800 3200Discharge Capacity / mAh

2.0

2.5

3.0

3.5

4.0

4.5

Cel

l Vo

ltage

/ V

Discharge:CC:Variable Current(E.V.:3.0V) at 20degC

0.2CA 0.5CA 1.0CA 2.0CA

Discharge Discharge RRateate Characteristics of UR18650ZT Characteristics of UR18650ZT

UR18650ZT (1It=2700)

CHG: CC-CV: 1.0A-4.30V (54mA cut) at 20deg.C

DCH: CC: Variable Current (E.V.:3.0V) at 20deg.C

UR18650F(Typ. 2.6Ah) (1It=2500)



Typ.2.8Ah ModelTyp.2.6Ah Model

0.2 ItA0.5 ItA1.0 ItA2.0 ItA



2.0

2.5

3.0

3.5

4.0

4.5

Cel

lVo

lt ag e

/V

-10℃0℃20℃40℃

Temperature Temperature discharge Characteristics of UR18650ZTdischarge Characteristics of UR18650ZT

Typ.2.8Ah　modelTyp.2.6Ah　model

-10deg.C

0deg.C

20deg.C

40deg.C

UR18650ZT (1It=2700)


DCH: CC: 0.5C(=1350)mA (E.V.:3.0V) at Variable Temp.

UR18650F (Typ.2.6Ah) (1It=2500)


DCH: CC: 0.5C(=1250mA) (E.V.:3.0V) at Variable Temp.


0

500

1000

1500

2000

2500

3000

0 100 200 300 400 500Cycle Number / -

Cap

acity

/ m

Ah

Achieved 83% capacity after 500 cycles.

CHG: CC-CV: 0.5C-4.30V (54mA cut) at various temp.

DCH: CC: 2700mA (E.V.:3.0V) at various temp.

CycleCycle Characteristics of UR18650ZTCharacteristics of UR18650ZT25 deg.C


Storage Characteristics of UR18650ZTStorage Characteristics of UR18650ZT

Cap

acity

/ m

Ah

Initial Residual Recovery1000

1500

2000

2500

3000

UR18650ZT (1It=2700)

CHG: CC-CV: 1C(=2700mA)-4.30V (54mA cut) at 25deg.C

DCH: CC: 1C (E.V.:3.0V) at 25deg.C

UR18650F (Typ.2.6Ah) (1It=2500)

CHG: CC-CV: 1C (=2500mA)- 4.20V (50mA cut) at 25deg.C

DCH: CC: 1C (E.V.:2.75V) at 25deg.C

UR18650ZTUR18650F(Typ.2.6Ah)

Storage at SOC 100% for 20 days @ 60 deg.C

UR18650ZT has higher capacity than UR18650F after storageUR18650ZT has higher capacity than UR18650F after storage


Result ofResult of SafetySafety TestTest for for UR18650UR18650ZTZT

＜＜JIS C8714JIS C8714＞＞

＜＜ULUL 1642Test1642Test　　resultsresults＞＞

UL approval

Condition: Charge Voltage 4.35V

External Short circuit testCrash Test Thermal abuse

test at 130℃Forced internalshort circuit test

passed50deg.C

5deg.C

UR18650ZT

passed passed

passed

passed

passed

passed

passed

<Notes> Criteria: No explosion, no fire

(Condition: Charge Voltage 4.30V)


Development of prismatic cellwith High Capacity

Development ofDevelopment of prismatic cellprismatic cellwith with High High CCapacity apacity


Comparison of High Capacity Models (UF463443GT]Comparison of High Capacity Models (UF463443GT]

UF463443G(Typ. 830mAh) UF463443GT(under development)

Cell size T4.35 X W33.7 X H42.5mm T4.32 X W33.7 X H42.5mm

Capacity(mAh) Typ. 830mAh Typ. 870mAh

Capacity(Wh) Typ. 2.95Wh Typ. 3.12Wh

Cathode activematerial LiCoO2

LiCoO2Li(Ni-Mn-Co)O2

Charge &discharge voltage



Weight Typ. 15.3g Typ. 15.1g

Safety Level Same


Discharge Discharge RRateate Characteristics of UF463443GT Characteristics of UF463443GT (under development)(under development)

UF463443GT (1It=840mA)

CHG: CC-CV: 1C-4.30V (16.8mA cut) at 25deg.C


UF463443G(Typ. 830mAh) (1It=800mA)

CHG: CC-CV: 1C-4.20V (16mA cut) at 25deg.C


UF463443GTUF463443G(Typ.800mAh)

0 200 400 600 800 1000

4.5

4.0

3.5

3.0

2.5

2.0

Discharge Capacity / mAh

Cel

l Vol

tage

/ V

0.2 ItA1.0 ItA2.0 ItA


CycleCycle Characteristics of UF463443GTCharacteristics of UF463443GTC

apac

ity /

mA

h

Cycle number / -

Swel

ling

/ mm

0 100 200 300 400 5000

200

400

600

800

1000

0

0.4

0.8

1.2

1.6

2.0

Capacity

Swelling

UF463443GTUF463443G(Min.800mAh)

45 deg.C


Development Trend ofHigh Power BatteriesDevelopment Trend ofDevelopment Trend ofHigh Power BatterHigh Power Batteriesies


Comparison of High Power Models (UR18650WX)Comparison of High Power Models (UR18650WX)((under developmentunder development))

UR18650SAX UR18650WX UR18650W

Cell size 18 X 65mm 18 X 65mm 18 X 65mm

Capacity(mAh) Typ. 1350mAh Typ. 1550mAh Typ. 1600mAh

Cathode activematerial

LiMn2O4Li(Ni-Mn-Co)O2



Max. Current(Continuous) 25A 20A 15A

Max. Current(durable 350 cycles) 20A 15A 10A

AC Impedance(1kHz) 14m 14m 25m


2.0

2.5

3.0

3.5

4.0

4.5


Vol

tage

/ V

Charge: CC-CV:1C-4.2V(100mA cut) at 25 deg.C

Discharge:CC:10A(E.V.:2.5V) at -10 deg.C

Discharge Characteristics at large currentDischarge Characteristics at large current

UR18650WX shows high operating voltagewith high capacity at large current.

220A0AUR18650SAXUR18650W

UR18650WX


2.0

2.5

3.0

3.5

4.0

4.5


Vol

tage

/ V

UR18650SAXUR18650W

UR18650WX

Charge: CC-CV:1C-4.2V(100mA cut) at 25 deg.C

Discharge:CC:10A(E.V.:2.5V) at -10 deg.C

Discharge Characteristics at low temperatureDischarge Characteristics at low temperature

10A at 10A at --10 10 deg.Cdeg.C

UR18650WX shows high operating voltagewith high capacity at low temperature.


Future Development Trend ofLithium Ion Batteries

Future Future Development Trend ofDevelopment Trend ofLithium Ion BatterLithium Ion Batteriesies


Capacity

Cost

Reliability

AvailabilityDurabilitySafety

Power

Requirements for lithium ion batteries


High Power

High Capacity

Power Tools

　Robot

Cordless Applications

Future Cellular-PhonesNote-PCs

Mobile Applications

PDA

DSC　　HEV

New Applications with Rechargeable Batteries New Applications with Rechargeable Batteries


ENDThank you very much

sanyo 26th international battery seminar

Documents

cell voltage

discharge

future development

cell size

high capacity

voltage

prismatic

charge voltage