general electronics battery co., ltd.ppt

8/12/2019 General Electronics Battery Co., Ltd.ppt

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Company Profile

Professional manufacturer and sales of Li-ion Battery Packs,

with profound background in lithium battery field

Technical staff, R&D team, administrant, sales and production

people, total 3000 employees

Factory area 10k m2, sales office 20k m2

Production volume: 160k cells/day for Al can and 50kcells/day for Polymer Li-ion Battery

GEB: oversea sales; B&K: OEM factory


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Brief HistoryDec.1999, mass production for Li-ion

Battery with Aluminum cans

May 2002, R&D of Polymer Li-ion

Battery

April 2003, mass production for

Polymer Li-ion Battery

Nov.2004, R&D of Polymer Li-ion

Power Battery

June 2005~2013, mass production for

Polymer Li-ion Power Battery


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QUALITY CERTIFICATION

ISO9001 ISO14001


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CE UL


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QS9000


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RoHS Certificate


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Application for Polymer Li-ion Power Battery

Military

Mining lamps

Power tools

E-car

E-bike

Health care


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Motor power: 180W

Weight of e-bike: 22.5kg

Max. speed: 20 km/hWeight of rider: 71 kg

Battery Pack: 10Ah/36V

Ride distance: 43 km/day

Test time: 480 days

Total distance: 20640 km

Retained capacity: 7.7 Ah


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Cell capacity: 53 Ah

Pack voltage: 150 V

Weight of EV: 320 kg

Max. speed: 80 km/h

Battery Pack: 8 kWh

Drive distance: 100 km

No. of passengers: 2Weight of load: 150 kg


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Functions of PCB

1. Overcharge

2. Over-discharge

3. Over-current

4. Short-circuit

Functions of BCB

1. Derivation of chargecurrent

2. Balance chargevoltage


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Polymer Li-ion Power Battery

Stacking Structure

Large capacity with high discharge rate

Capacity range: 8~200Ah

Discharge current: 12~400A

Excellent safety Environmental friendly: no electrolyte leak

Very good reliability

Product introduction


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Aluminum substrate

Cathode layer

Separator

Polymer electrolyte

Anode layer

Copper substrate


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Complete Power Solution1. Battery cells

2. BMS: Battery Management System3. Fuel gauge (LED or Digital as options)

4. Lead and Plugs

5. Charger


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Comparison Among Four Technologies

Cathode materials LiCoO2Li(NiCoMn)O

2LiMn2O4 LiFePO4

Reversible capaci ty

(mAh/g)140 140 100 140

Middle point vol tage (V) 3.7 3.6 3.8 3.2

Working vo l tage window

(V)3.0~4.2 3.0~4.25 3.0~4.35 2.0~4.0

Overch arge tolerance (V) 0.1 0.1 0.3 0.7

R.T. Cycle life (cyc les) 400 400 300 2000

Heat Flow by DSC (kJ/g) 650 600 150 10

Overcharge without PCB 4.8/3C Exp . 6V/3C Firin g 8V/3C Firin g 25V/3C Pass

Price (US$/kg) 30 22 15 12

Gravimetr ic energy

densi ty (Wh/kg)180 150 100 110

Volumetr ic energy

densi ty (Wh/L)400 360 250 180

Advantages and

disadvantages

High energy

poor safety

h igh cost

High energy , fair

good s afety,

re lat ively low

cost

Safer, low cost,

low energy poor

cyclel i fe

Safe, low co st,

long cyclel i fe,

low energy


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Li(NiCoMn)O2


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Li(NiCoMn)O2


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Li(NiCoMn)O2


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1G Polymer-Li Power Pack


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Charge voltage

Charge current

1 step charging process: only CC


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LiFePO4 Cell Charging Character vs. Lead-acid

1.8

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

0 20 40 60 80 100

State of Charge (%)

Battery

volta

ge

(V)

0.0

0.5

1.0

ChargecurrentatC-rate

Charging current

LiFePO4Battery Charging Voltage

1 step charging: CC

Lead-acid battery charging voltage


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Thank you

general electronics battery co., ltd.ppt

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