Anode active material manufacturing equipment

for lithium secondary battery

What's Better? 

[Present manufacturing process - CVD]

 

- High Heat treatment at 2,800 ~ 3,200℃ is required

- High price raw materials are required: micron(<50㎛) size Si and SiO2

- Low productivity [high-temperature heat treatment and Hexane gas expense]

- High-priced manufacturing equipment is required [Cooling system, powder collector etc.]

[New Process we have developed - liquid phase synthesis method]

- Proceed heat treatment after forming an intermediate product with stirring reaction at room temperature.

- Low price raw material

- High productivity [ Productivity has improved by using the liquid phase synthesis method at room temperature ]

Mass Production Pross of SiOx

CCSS

[Control Chemical Supply System]

Raw materials

Supply[exact quantity]

Sponge Reaction

Heating

Liquid

Sponge

Type

React to solid SiOx

Milling

Optimum size milling

Meta-stable

Medium Materials

Solid SiOx

except sizing

Feeding Unit

Reactor

Furnace

Milling Machine

Comparison of Anode active materials

LIB Anode active material

Carbon-Based

(Graphite)

Material

•Capacity: 280~370 mAh/g

•Price range: 8$~12$ 

•Chinese companies dominate the market.

Metal-Based

(Si, Sn metal)

Material

•Capacity: 3,000~4,000 mAh/g

•Commercially Unavailable

•It has capacity degradation caused by volumetric expansion.

Oxide-based

(SiOx)

Material

•Capacity: 1,000~1,800 mAh/g

•High commercial value

•Only a few companies can mass produce.

(주) 다인스

전라북도 완주군 봉동읍 테크노밸리4로 22(장구리 581-3번지)
TEL : 070-8816-4601  I  FAX : 063-263-9852  I  E-mail : nayana8511@dain-s.com

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