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GE2410

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by

Alves Wang

on 31 October 2013

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Transcript of GE2410

Fang-Yuan, S., Yan-Bing, H., Baohua, L., Xue-Cheng, C., Cong-Hui, Y., Wei, W., & ... Feiyu, K. (n.d). Rapid communication: Could graphene construct an effective conducting network in a high-power lithium ion battery?. Nano Energy, 1429-439. doi:10.1016/j.nanoen.2012.02.004
graphite anode
GE2401 English for engineering
current problems
deposits:
http://www.google.com.hk/imgres?q=fuel+cell&um=1&hl=zh-TW&safe=active&sa=N&tbm=isch&tbnid=0_gjjHYKf234EM:&imgrefurl=http://newenergyandfuel.com/http:/newenergyandfuel/com/2009/10/29/developing-a-cooler-fuel-cell/&docid=-zfSAlz7b1oblM&imgurl=http://newenergyandfuel.com/wp-content/uploads/2009/10/Solid-Oxide-Fuel-Cell-267x300.png&w=267&h=300&ei=VFhxUKaGOLCyiQfeqIDgAQ&zoom=1&iact=rc&dur=100&sig=109044219163862815093&page=2&tbnh=132&tbnw=115&start=24&ndsp=28&ved=1t:429,r:22,s:24,i:216&tx=72&ty=99&biw=1441&bih=608
Reference:
Members:

" the new-born graphene anode battery "
project leader Michelle 53031520
Design engineer Alves 52638910
test engineer Steve 53030073
sales engineer Mila 52640535
In our daily l.
Members:
real life problems
our technology and the improvements
limitations of our technology
our company and products
Agenda
graphene anode
duration
charging rate
ten times
graphite anode vs graphene anode
graphene anode
millions of holes
(cc) photo by medhead on Flickr
silicon
:)
(now)
(future)
limitations
cell life
safety requirement
deposits
internal resistance
capacity loss
Our Company
•Shut-down separator (for overtemperature)
•Vent (pressure relief)
•Thermal interrupt (overcurrent/overcharging)
1. normal charger's ineffectiveness
fail-safe circuitry
2. points of failure and irreversibly disable the cell
cost
vent:
http://www.google.com.hk/imgres?q=vent&start=152&um=1&hl=zh-TW&safe=active&tbm=isch&tbnid=rN4oSte7kXDDXM:&imgrefurl=http://www.ehow.com/how_6389310_install-electric-gable-vent.html&docid=hEZn8U6LqZYFqM&imgurl=http://img.ehowcdn.com/article-new/ehow/images/a06/2v/hu/install-electric-gable-vent-800x800.jpg&w=400&h=300&ei=xwZtULL_BIyiiAfyvYCgAw&zoom=1&iact=hc&vpx=1221&vpy=131&dur=730&hovh=194&hovw=259&tx=149&ty=120&sig=109044219163862815093&page=7&tbnh=144&tbnw=199&ndsp=27&ved=1t:429,r:5,s:152,i:264&biw=1525&bih=687
thermal interrupt:
http://www.aliexpress.com/promotion/promotion_thermal-cutoff-promotion.html
separator:
http://en.wikipedia.org/wiki/Separator_(electricity)
Type of solution developed
H.K. based company
Established in 2000

To improve life by improving energy technology
and
at the same time be green
Mission
chemical nature of batteries
Nature of problem
Nature of the problem
Chemical nature of batteries
Demands of nowadays society
Graphene
Application of Technology
conducting network in high-power lithium ion battery
anchored with silicon atoms as
high-performance anode material
Reason
excellent conductivity
GRAPHENE
Internal
resistance
Energy
density
Work with silicon(si)
Performance of battery
graphite anode lithium-ion batteries
Chemical nature of batteries
battery capacity
charging rate
Disposal and replacement
2 hours 80% battery + 2 hours 100% battery
maximum electrical charge that battery can deliver
after years
Demands of nowadays society
people's demand on mobile devices
increasingly complex apps
communication
entertainment
Complex Apps and Functions
advertisements in apps (75%)
finding out your location(45%)
lithium-ion(li )
anode
cathode
Graphene
New Products
Thor
Name:
Target Customer
Users of Electronic Device
Electronic device company
Technology
You and Me
Replacement batteries
Different Models
Different electronic devices
Special Service
Collection & recycling Service
5 year warrenty
Rechargable

Cells
Thor
Grapgene
highest theoretical specific capacity
(6-->1 1-->4)
hi
thin but long
"traffice jam"
capacity?
charging rate?
People affected
for silicon
EVERYONE NEEDS A MOBILE DEVICE !!
SOLUTION TO THE LOW PERFORMANCE OF BATTERY ??????
portable charger
Existing Solution
Spare batteries
Company four
“Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium-ion batteries on the market today.”
yellow sign
http://www.google.com.hk/imgres?q=yellow+sign&
start=90&hl=zh-TW&safe=active&sa=X&rlz=1R2KMOH_enHK501&tbm=isch&prmd=imvns&tbnid=6IFqgG8_aeSF2M:&imgrefurl=http://www.billmalchow.com/schedule.php%3Fold%3D1&docid=8fA-xR4lIoTylM&imgurl=http://www.billmalchow.com/pic/sched_pics/yellow-warning-sign.jpeg&w=1280&h=1024&ei=pylxUIStF_CUiAfit4HoAg&zoom=1&iact=hc&vpx=362&vpy=268&dur=132&hovh=201&hovw=251&tx=155&ty=119&sig=109044219163862815093&page=4&tbnh=132&tbnw=164&ndsp=32&ved=1t:429,r:1,s:90,i:9&biw=1441&bih=608
Graphene Battery
Lithium Battery
V.S.
pic3
pic4
pic 6
pic 7
harold kung
Fang-Yuan, S., Yan-Bing, H., Baohua, L., Xue-Cheng, C., Cong-Hui, Y., Wei, W., & ... Feiyu, K. (n.d). Rapid communication: Could graphene construct an effective conducting network in a high-power lithium ion battery?. Nano Energy, 1429-439, p.434 figure 4. doi:10.1016/j.nanoen.2012.02.004
graphene
graphite anode
graphene anode
safe fail circuitry:
http://www.google.com.hk/imgres?q=safe+fail+circuitry&um=1&hl=zh-TW&safe=active&tbm=isch&tbnid=Fd89XASU6HvFbM:&imgrefurl=http://www.allaboutcircuits.com/vol_4/chpt_6/5.html&docid=iNH35xUIl2H8XM&imgurl=http://sub.allaboutcircuits.com/images/04066.png&w=495&h=323&ei=_FhxUJ2xNtCziQfswIHQDg&zoom=1&iact=hc&vpx=163&vpy=149&dur=313&hovh=181&hovw=278&tx=203&ty=114&sig=109044219163862815093&page=1&tbnh=110&tbnw=168&start=0&ndsp=22&ved=1t:429,r:0,s:0,i:67&biw=1441&bih=608
+
Full transcript