Technical DocumentNew Cathode Material

LixNiaCobMncO2

Do not distribute or duplicate without prior approval of DAEJUNG CHEMICAL & METAL CO., LTD.

Central R&D Center

Daejung Chemicals & Metal. Co., Ltd.

Company: .

Daejung Chemicals & Metals Co., Ltd. - 2 -

1.1. Corporate Profile

Corporate Name DAEJUNG CHEMICALS & METALS CO., LTD

CEO Ki-Sup, Song

Date of Establishment April, 1968

Employees 110

Total Asset (2004) USD 17.3 million

Total Sales (2004) USD 19.7 million

Net Income (2004) USD 2.1 million

Factory 1. Shiheung (16,500m2)2. Incheon (3,300m2)

Daejung Chemicals & Metals Co., Ltd. - 3 -

Daejung has been a steady and reputable supplier of high quality chemical materials to domestic markets on these following three business areas (1, 2, 3).Daejung is currently concentrating efforts on fostering the development of essential futuristic business areas (4, 5, 6) for Daejung’s future growth.

Reagent & Fine

Chemicals

Order-base Synthesizing

Pharmaceutical raw materials

1Metal oxide complexes

Chemicals for PCB

manufacturing

Raw materials for secondary

battery

1.2. Business Area

Main

Business

2

3 4

5

6

Daejung Chemicals & Metals Co., Ltd. - 4 -

1.3. Major Business Partners in Korea

KIST (Korean Institute of Science & Technology)

KAIST (Korean Academic Institute of Science & Technology)

Korea Chemical Research Lab.

Korea Textile Technology Institute

LG Group

Samsung SDI

Daejoo electronic materials Co., Ltd

SK chemicals

Hanwha chemical research complex

CJ Group

Choongwae pharmaceutical Co., Ltd

Chon kun Dang pharmaceutical Co., Ltd

Dong A pharmaceutical Co., Ltd

Kolon pharmaceutical Co., Ltd

……..

Daejung Chemicals & Metals Co., Ltd. - 5 -

1.4. Global Partners

Europe

A.B.C.R.

Acros Organics

Algry Quimica

Apin Chemical

Avocado Research Chemicals Ltd.

B.P. (British Pharmacopeia)

Bachem

Carl Roth GmbH

Carlo Erba Reactifs

Claushuis Metal

E.P. (European Pharmacopeia)

Lancaster Synthesis Ltd.

LGC Promochem.

Maybridge

Heraeus

Sodes Ether

Textron

America

Acumedia Manufactures Inc.

Alfa Aesar

Cerilliant

Difco Laboratories

I.C.N. (MP Biomedicals)

J.T.Baker

Mallinckrodt

Polysciences Inc.

Scott Specialty Gases

Strem Chemicals Inc.

U.S.Pharmacopeia

Asia

Acidchem Int’l Sdn. Bhd.

Dalian Chem.

Huaibei Chem.

Junsei Chemicals Co., Ltd.

Kanto Chemicals Co., Ltd.

Nissui Pharmaceutical Co., Ltd.

Rare Metallic Co., Ltd.

Shan Dong

Shanxi Xinshidai Imp. & Exp.

Co., Ltd.

Showa Ether Co., Ltd.

Wako Pure Chemicals Inc. Ltd.

Yakuri Pure Chemicals Co., Ltd.

Daejung Chemicals & Metals Co., Ltd. - 6 -

2.1. DJ-New Cathode General Reviews

LiCoO2 vs. Li(Ni-Mn-Co)O2LiCoO2 vs. Li(Ni-Mn-Co)O2

Thermal Stability

Rated Capability

Cycle Life...

LiCoO2 Li(Ni-Mn-Co)O2

Daejung Chemicals & Metals Co., Ltd. - 7 -

LiMn2O4

LiCoO2

LiNiO2

Powder PropertySpecific CapacityC-rate Capability

Life – Cycle, StorageLow-TemperatureHigh-Temperature

Safety

Powder PropertySpecific CapacityC-rate Capability

Life – Cycle, StorageLow-TemperatureHigh-Temperature

Safety

2.2. DNC Target Materials

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2. 3. MFG Process

MSMFG

RM

FPST CPR

Reaction control

OF-SStorage

W/F D

CF

I & G

Packaging

DNC-P: Li(Ni-Mn-Co)OH2

M-M

RM

CF

T, t, T

W/F

GR

D

CF D I & G

Packaging

DNC-L: Li(Ni-Mn-Co)O2

Daejung Chemicals & Metals Co., Ltd. - 9 -

3. Technical Data

×500

×10000

×2000

×10000

DNC-P: Li(Ni-Mn-Co)OH2 DNC-L: Li(Ni-Mn-Co)O2SEM

Daejung Chemicals & Metals Co., Ltd. - 10 -

0.1 1 10 100 1000

0

4

8

12

16

20

D50

9.63µm D

10 6.09µm

D90

14.27µm

% P

ass

% V

olu

me

Size (µm)

0

20

40

60

80

100

Particle Size

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10 20 30 40 50 60 70

Inte

nsi

ty

2 θ

XRD

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0 20 40 60 80 100 120 140 160 1802.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

Charge: CC-CV, 0.2C, 4.3V, 0.02C Cut-offDischarge: CC, 0.2C, 2.5VF/M Effi.: 88.7%

157.5mAh/g

177.5mAh/g

Vo

ltag

e (

V)

Specifica Capacity (mAh/g)

Half Cell - 1st Cycle

Daejung Chemicals & Metals Co., Ltd. - 13 -

0 4 8 12 160

20

40

60

80

100

DJL-PG DJL-GG

Battery Type: Stacking TypeCharge: CC-CV, 1.0C, 4.2V, 1/20C cut-offDischarge: CC, Each C-rate, 2.7V cut-off

Rate

d C

ap

ab

ilit

y (

%)

C-Rate

Full Cell – High C-Rate

Daejung Chemicals & Metals Co., Ltd. - 14 -

4. Summary

Manufacturing Capacity: 50~100MT/year

Grade: DJL-GG (General Grade), DJL-PG (Performance Grade)

New Cathode

Market Share (Cost, Production Capacity etc.)

DAEJUNG CHEMICALTechnology(Performance)