Experimental Setup
Three electrode cell Working electrode : Composite electrode
active material + conducting material + binder
LiCoO2
carbon PVDF
Counter electrode & reference electrode : lithium foil
Electrolyte : Li salt IN non-aqueous solvent
Li salt : LiPF6, LiBF4, LiClO4…
Solvent : EC, PC, DMC, DME…
Lab. of Energy Conversion & STORAGE Materials
Fig.
Structure of Thin film batteries
Encapsulation
Direct connect with battery’s stability
Protection the anode from exterior
Ex) Parlylene, Cr, V
Anode
Desorbs electrons as discharging
Ex) Li, SnO2, C
Electrolyte
High density of charge carrier
High density of vacancy & interstitial site
Low activation Energy of hopping
Cathode
Absorb electrons as discharging
Direct connect w
Product Name
Eneloop Mobile Buster KBC-L2B
Price
₩59,000~ ₩63,000
Function
Portable smart phone charger
Portable tablet PC charger
Company
SANYO Inc.
Taken over by Panasonic
Practicable Product
Apple : I-phone, I-pad
Android : Galaxy series, Sony,
Packaging content
1x Mobile Booster KBC-L2B
1x Charger input USB cable
1x Micro USB attachment
1x AC a
lithium ions storage.
Prevent the graphite anode from expanding by lithium ion intercalation
Si has theoretical capacity of 4200mAh/g
Due to it’s large volume change, pulverization can be occurred.
Silicon has high-capacity but poor cycle stability
Carbon has low-capacity but good cycle stability
So silicon/carbon composites can have higher capacity than single carbon anode
Fundamental structure is same as the general lithium polyer
battery . But some specific functional parts are to be reformed.
Functional improvement
Detailed shap have to be modified by experiment
[Anode material]
The potential that is close the standard electrode potential of Li.
High energy density per volume & weight
Excellent cycle stability (Coulomb effeciency)
Have to endure rapid charging or discharging
Stability
.
.
.
[High Voltage]
[Pollution-Free]
[long cycle life]
[No Memory Effect]
[Safer than Lithium ion battery]
[lower internal resistivity]
[advantageous
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*Separate Electric furnace and other system like Electronic scale
-Because Electric furnace temperature is very high
so we need to protect other system.
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*N
Ⅰ. 기술선정 동기
차세대 성장산업의 필수요소 친환경 그린 사업
- 2차전지는 한 번 쓰고 버리는 것이 아니라, 충전을 통해 반복 사용이 가능한 전지
‘고성능∙소형∙경량화 및 장시간 연속사용’이라는
모바일 IT제품 시장의 소비자 니즈를 충족시키는 데 결정적
반도체, LCD와 더불