Wearable Energy Sources
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Wearable Energy Sources
For IEEE Wearable Technology - Seminar and Tabletop Exposition
- Materials perspective
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I. Wearable Energy Theory
II. Wearable Energy Technology
III. Wearable Energy Application
IV. Conclusion
Today’s Agenda
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Source: Rutherford’s planetary model of the atom
Planetary model of the atom with nucleus and electrons
Wearable Energy Theory
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Electron size comparisonProton (+)
Electron (-)
Wearable Energy Theory
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Schrödinger’s Cat (Schrödingers Katze)
Wearable Energy Theory
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Electric Volt and Ampere
1 Amp
(-)(+)
1 Volt
1 A/h
Wearable Energy Theory
(Quantity)
(Power)
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Wearable Energy Technology
Super Capacitor
Long
life span
Quick
Charge/
Discharge
Environment
Friendly
Stability
High-
Capacity/
Output
•Support million charges
•Very long life span
•Non-explosive•Carbon materials
•Quick charge
using surface absorption
•Higher than
regular capacitor
•Higher than
secondary cell
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Activated Carbon
Electrolyte Separator
How Super Capacitor Works
Wearable Energy Technology
CHARGED DISCHARGED
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Vertically Aligned Graphene Oxide Electrode Film for Supercapacity
Wearable Energy Technology
Source: http://www.businesskorea.co.kr/article/4156/supercapacitor-tech-electric-vehicles-be-charged-1000-times-faster
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Battery Supply Chain
Materials Form Factor Process
Battery Names Battery Category Packaging type
•Lead
•Ni-Cd
•Lithium ion
•Lithium Polymer
•Lithium Metal Hydro
….
•Physical cell
-Solar Cell
• Chemical Cell
- Primary
- Secondary
- Fuel Cell
•Cylindrical
•Pouch
•Prismatic
•Thin film
B to B
B to C
Wearable Energy Technology
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Mix
ing
Mix
ing
Co
atin
g
Pre
ssin
g
Slit
tin
g
Co
atin
g
Pre
ssin
g
Slit
tin
g
Cath
od
e(+
)A
no
de (
-) Win
din
g
Ass
em
bly
Insp
ect
ion
Pac
kagi
ng
Stir
rin
g
Form
ing
Pre
ssin
g
Slit
tin
g
Sep
ara
tor
Component Production Process Assembly Process
Battery Production Process
Wearable Energy Technology
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Physical cell Chemical cell
Solar cell
Primary cell Secondary cell Fuel cell
Lithium Alkali
Li-Mn Alkaline-Mn
Lithium Alkali Acid
Li-ion
Li-metal
Ni-Cd
Li-Zn
Li-MH
PbSO
Li-polimer
Battery category types
Wearable Energy Technology
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Basic functionality of Lithium-ion Battery
Wearable Energy Technology
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Basic structure of rechargeable battery
Wearable Energy Technology
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Basic Battery Type 1
Wearable Energy Technology
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Basic form factor of Battery 2
Wearable Energy Technology
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•Highly electropositive(so higher voltage is obtained depending upon the cathode used)
•High electrochemical equivalence
•High capacity (3.82Ah/g) and energy density (1470Wh/Kg)
Good conducting agent (Good at transport electron)
•Good mechanical stability (low density of lithium metal (0.534g/cc)
•Ease of fabrication/compact design
Why Lithium-XXX Battery?
Wearable Energy Technology
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Wearable Energy Technology
Why thin and long lasting battery is difficult to make?
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Wearable Energy TechnologyEV drive range and EV battery weight
Source: http://janderson99.hubpages.com/hub/How-to-Make-Electric-Cars-Hydrogen-Cars-and-Plug-In-Hybrid-Electric-Vehicles-Successful#
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Schematic diagrams of the different Li anode structures
Interconnected hollow carbon nanospheres for stable Li metal anodes
Wearable Energy Technology
Source: http://www.extremetech.com/computing/186952-stanford-creates-holy-grail-lithium-battery-could-triple-smartphone-and-ev-battery-life
SEI :Solid electrolyte interface
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Wearable Energy Technology
Is Graphene ultimate materials for battery?
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Wearable Energy Technology
Is Graphene able to be mass-produced?
Graphite
Acid solution
Oxidant
Preprocessing
Continuous Oxide Graphene reactor
Source: http://English.etnews.com/device/2956730_1304.html
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Wearable Energy Technology
Sources of Energy Harvesting
Source: http://wonderfulengineering.com/german-engineer-makes-a-free-energy-harvesting-device/
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DC/AC Generator
Piezoelectric
Transducer
Capacitive
Transducer
Induction Coil
& magnet
Antenna /
Rectenna
Induction Coil
Photovoltaic Cell
Thermoelectric Element
Electrochemical
Reaction
Water flowWind Compressed
Gasses
Energy Harvesting Devices
Mechanical Vibration
Mechanical Vibration
Mechanical Vibration Radio wavesSolar Radiation
Microwave radiation
Power Transmission lines
Solar Radiation
Artificial lighting
Thermal Reservoir
AutophagousStructure battery Autophagous
Structure-power combustion
Wearable Energy TechnologyEnergy Harvesting devices
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Wearable Energy Technology
Kinetic Energy Harvesting
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Wearable Energy Technology
Thermal Energy Harvesting
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Wearable Energy Technology
Rectenna Energy Harvesting
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Hybrid Energy Storage system with Fuel Cell, Battery & Supercapacitor
Wearable Energy Application: Super-capacity
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Flexible pouch type battery and Roll to Roll battery cloth
Wearable Energy Application: Super-capacity
Source : http://www.flexelinc.com/products.html
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Wearable Energy Application: Energy Harvesting
Vibration chip called iMOOV chip is powered by piezoelectric generator.
Vibrating sports shoes powered by piezoelectric power generator
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Wearable Energy Application: Energy Harvesting Intelligent Thermostatic Radiator Valve using Thermoelectric Energy Harvesting
Wireless ThermostaticRadiator valve working With intelligent home thermostats
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Wearable Energy Application: Energy Harvesting
Wireless charging system using Rectenna Energy Harvesting
Source: Ossia
Source: humavox
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Wearable Energy Application: Energy Harvesting Solar Bikini Smart phone battery charger
Source: http://www.actnergroup.com/wearable/wearable-clothing-device/
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Conclusion
Economy of scale is very important to any wearable energy source
Source: Gelon LIB Group
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Conclusion
Both S/W and H/W need to be optimized to support longer battery life span
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ConclusionConclusionScientists need to focus more on their research not on some PR stuff
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ConclusionConclusion
New break through technology is urgently required.
Source: http://venturebeat.com/2013/11/06/samsungs-promises-devices-with-foldable-displays-by-2015-tries-to-make-fonblet-a-thing/
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