EXA technology status

Lithium Polymer Batteries

動能科技

Three major components

電池（心臟）Battery, Heart

LCD ( 臉 Face)

IC （腦 Brain ）

Lithium ion battery

V

LiCoO2MCMB

Discharge Li+ transfer

CathodeAnode隔離膜

The principle of Lithium ion battery

AnodeC

CathodeLiCoO2

e- e-e-

Discharge

e-e- e-

Charge

PassiveFilm

Separator

Cathode 正極 : LiCoO2 Li(1-x) CoO2+xLi+ +xe-

Anode 負極 : C6 +xLi ++xe- Lix C6

總反應 : LiCoO2+C6 Li(1-x) CoO2+LixC6

Charge

Discharge

Electrodes voltage change on charging/ discharging status

C 3.0 V

LiC6 0.0 V

4.2V Li0.5CoO2

3.0V Li1.0CoO2

Open Circuit Potential vs Li

Voltage stability on LiCoO2

Various cathode materials for lithium ion battery

Thermal stability on various cathode materials

What parameter affect C-rate?

ESR= 0.03 ohm3CIR drop = 0.03*2A = 0.06 V

CLB1098 : EC83 vs EA68 cathode density : 3.2g/cm3

LA25(3.0g) A117

Capacity (Ah)

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Vo

lta

ge

(V

)

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

0.2C 804.29(100%) 1C 790.26(98.26%) 2C 776.77(96.58%)3C 759.79(94.47%)

Why low temperature voltage drop?

ERB040418-3

Cap.(mAh)

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

Vol

tage

(V)

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

±`·Å-20

ERB040418-9

Cap.(mAh)

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

Vo

ltag

e(V

)

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

±`·Å-20

Safety of battery

Separator dimension stability on high temperature

40.00 80.00 120.00 160.00 200.00tem p(¢J)

4.00

4.50

5.00

5.50

Leng

th (cm

)

Separator§÷½è

PP

PE

PP/PE/PP

Separator ³æÃä(X)»PTEMP ¤§ÅܤÆ

Function of Separator

• To prevent electric short between cathode and anode

• To provide ion diffusion path on battery

• Shutdown ion diffusion path when overheat

Various separators with different materials

Effects of electrolytes

• Electrochemical stability

• Quality of SEI (Solid electrolyte Interface) film

• Affect operation temperature for batteries

• Safety of battery

電源的應用模式—如何選擇（要求）電池

•大電流模式 high C-rate discharge mode: 電動車，電動工具，模型飛機，模型汽車。•中電流放電模式： GSM 模式，數位相機， MP3 (with HD), Video player, PHS, PDA ， NoteBook PC,電子字典•小電流放電模式：藍牙耳機， MP3 (with CF)

電源的應用模式— GSM 放電模式

電源的應用模式—各種放電模式比較

電源的應用模式— GSM 放電模式

電源的應用模式—溫度影響 GSM 放電模式

charge curve of EXA AL501430A (150mAh)

AL383456A Charge Rate Characteristics

Charge Time (Hours)

0 1 2 3 4 5 6

Ce

ll V

olta

ge

(V

)

3.4

3.6

3.8

4.0

4.2

4.4

Cell

Tem

pera

trure

(¢J)

20

22

24

26

28

30

32

34Cell VoltageCell Temperature

0.2C 0.5C 1C 1.5C

Discharge curve of EXA AL501430A (150mAh)

AL421430A Discharge Rate Characteristics

Capacity (mAh)0 30 60 90 120 150

Ce

ll V

olta

ge

(V

)

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

Cel

l Sur

face

Tem

pera

ture

(¢J

)

30

40

50

60

0.2C0.5C1C1.5C2C

Cell VoltageCell Surface Temperature

AL501430A (150mAh) cycle life

AL421430A 1C 500 Cycling Characteristics

Cycle Number (cycles)

0 100 200 300 400 500

Dis

char

ge C

apac

ity R

atio

(%

)

010

60

70

80

90

100

Charge : 670mA , 4.2V , 25¢J Discharge : 670mA , 3.0V Cut-off , 25¢J

AL501430A (150mAh) charge capacity on different temperature

AL421430A Charge Temperature Characteristics

Charge Temperature (¢J)

0 10 20 30 40 50

Cap

acity

(m

Ah)

136

138

140

142

144

146

148

150

152

154

Cap

acity

Rat

io (

%)

92

94

96

98

100

102

Charge : 335mA 4.2V Discharge: 134mA cut off 2.75V , 25¢J

Discharge curve on different temperature of Merry EXA AL501430A (150mAh)

AL421430A Discharge Temperature Characteristics

Discharge Temperature (¢J)

-40 -20 0 20 40 60 80

Cap

acity

(m

Ah)

115

120

125

130

135

140

145

150

155

Charge : 335mA 4.2V 25¢JDischarge: 134mA cut off 2.75V

Discharge capacity of Merry EXA AL501430A (150mAh) on various

temperature

AL501430A (150mAh) UL_1642 safety testPass UL_1642 test

Pass AL501430A (150mAh) Overcharge test

Battery No.Initial Thickness A1

(mm)

Final Thickness A2

(mm)

Thisckness change (mm)

Max.Temp.( )℃ Note

AL501430A#01 3.84 3.91 0.07 27.6

2C,5V

AL501430A#02 3.84 3.89 0.05 28.0

AL501430A#03 3.85 4.95 1.10 31.0

AL501430A#04 3.86 5.17 1.31 31.0

AL501430A#05 3.87 5.73 1.86 29.1

AL501430A#06 3.86 16.75 12.89 103.6

2C,6V

AL501430A#07 3.88 18.16 14.28 113.1

AL501430A#08 3.86 18.36 14.50 113.2

AL501430A#09 3.9 18.04 14.14 112.4

AL501430A#10 3.85 18.29 14.44 110.5

AL501430A Capacity distribution501430二活放電量分布圖

0.00%

1.00%

2.00%

3.00%

4.00%

5.00%

6.00%

7.00%

8.00%

9.00%

10.00%

(mAh)放電量

(%)

百分

比

1數列 0.0 0.4 0.3 0.4 1.0 1.3 1.7 1.6 1.9 3.3 3.6 4.4 6.5 7.2 7.7 7.7 8.7 8.2 6.3 5.4 4.1 3.1 3.2 2.8 1.7 1.6 1.0 0.9 1.1 0.6 0.4 0.3 0.1 0.0 0.0

146

146

146

147

147

147

147

148

148

148

148

148

149

149

149

149

150

150

150

150

150

151

151

151

151

152

152

152

152

152

153

153

153

153

154

AL421430A ACR DistributionGrouped Bar Chart with Error Bars

ACR distribution

146 147 148 149 150 151 152 153

Nu

mb

ers

0

100

200

300

400

500

600

700

Product Specification

Cell ModelNominalVoltage v)

RatedCapacity(mAh)

Dimension (mm)Weightapprox.(g)

GravimetricDensity(Wh/kg)

VolumetricDensity (Wh/L)

T W H

AL421430 3.7 120 4.2 14 30 3.0 148 250

AL501430 3.7 150 5.0 14 30 3.5 155 260

AL402030 3.7 180 4.0 20 30 4.2 155 275

AL502030 3.7 230 5.0 20 30 5.4 155 280

NEW AL401836

3.7 230 4.0 18 36 5.2 155 320

NEWAL402050

3.7 400 4.0 20 50 8 185 370

Product Specification

Cell ModelNominalVoltage (v)

RatedCapacity(mAh)

Dimension (mm)Weightapprox.(g)

GravimetricDensity (Wh/kg)

VolumetricDensity (Wh/L)

T W H

NEWAL402060

3.7 430 4.0 20 60 10 150 320

NEWAL364850

3.7 940 3.6 48 50 18 190 400

NEWAL553436

3.7 600 5.5 34 36 12 175 315

AL501430 3.7 670 3.8 34 56 15 165 340

AL383562 3.7 700 3.8 35 62 16 160 315

AL503759 3.7 1050 5.0 37 59 22 175 350

NEWAL425059

3.7 1200 4.2 50 59 25 175 350

Product Roadmap

Model2004

2005 2006Q1~3 Q4

AL553436 600 700 750

AL501430 670 800 850 900

AL383450 700 740 800

AL503759 1050 1300 1350 1400

AL425059 1200 1350 1400

AL421430 120 130 135

AL501430 170 155 160

AL402030 180 185 190

AL502030 230 240 250

AL401836 230 240 250•Capacity measuring conditions : charge ( CC/CV : 0.2C/4.2V, 0.05C ) discharge ( 0.2C/E.V = 2.75V )

•This information contained herein may be changed without prior notice.

High Power Density LPB503759E(1050mAh) Discharge Characteristics

Discharge Capacity (mAh)

0 200 400 600 800 1000

Ce

ll V

olta

ge

(V

)

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Ce

ll S

urf

ace

Te

mp

. (¢

J)

0

10

20

30

40

50

60

70

80

90

100

15A20A5A10A

2320_PA_4tab

High Power Density LPB

Discharge Capacity (mAh)

0 200 400 600 800

Cel

l Vo

ltage

(V

)

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Cel

l Su

rfac

e T

em

p. (

¢J)

0

10

20

30

40

50

60

70

80

90

100503759E(1050mAh) Discharge Characteristics

High Power Density LPB10A Discharge Characteristics

Discharge Capacity (mAh)

0 200 400 600 800 1000

Ce

ll V

olta

ge

(V

)

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0Sample-1Sample-2Under Developement503759DApachi

Working Voltage Windows of LPB

4.2V

2.8V

Battery Usable Area

2.5V

4.35V

Voltage forbidden area

Voltage forbidden area

Voltage warning area

Voltage warning area4.2V

2.8V

2.5V

4.35V

THE END

Thank You For Your Attention!