Week 1 Understanding Different Battery Chemistry

1.Prepare a table which includes materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells.Give your detailed explanation on it.

Type of lithiumbattery anode material cathode material seperater electrolyte anode chemical cathode chemical Redoxreation

LCO (Lithium Cobalt Oxide) Graphite carbon Lithium cobalt oxide poloyolefin ethylene carbonate Li_xC₆→xLi⁺+xe^-+C_{6 Li1-xCoO2+xLi⁺+xe→LiCoO2 c6+LiCoO2↔LiC6+CoO2}

_{Graphite carbon Lithium cobalt oxide poloyolefin lithium haldie LixC6→xLi⁺+xe^-+C6 Li1-xMn2O4+xLi⁺+xe^-→LiMn2O4 c6+liMn2o4↔lic6+Mn2o4}

_{NCA(Nickel cobalt aluminium oxide) Graphite carbon Lithium cobalt oxide poloyolefin ethylene carbonate LixC6→xLi⁺+xe^-+C6 Li1-xNiCoAlO2+xLi++xe-→LiNiCoAlO2 c6+LiNiCoAlo2 ↔LiC6+NiCoAlO2}

_{NMC(Nickel cobalt maganese oxide) Graphite carbon Lithium cobalt oxide poloyolefin lithium salt LixC6→xLi⁺+xe^-+C6 Li1-xMn2O4+xLi⁺+xe^-→LiMn2O4 C6+LiNi0.8Mn0.1Co0.1O2 ↔LiC6+Ni0.8Mn0.1Co0.1O2}

LFP(Lithium iron phosphate) Graphite carbon Lithium cobalt oxide poloyolefin ethylene carbonate Li_xC₆→xLi⁺+xe^-+C_{6 Li1-xFePO4+xLi++xe-→LiFePO4 C6+LifePO4↔LiC6+FePO4}

_{LTO(Lithium titante oxide) lithium titante oxide lithium maganese oxide poloyolefin titante salt Li4Ti5O12→Ti5O12+4Li++4e- 4Li1-xMn2O4+4Li⁺+4e^-→4LiMn2O4 Li4Ti5O12+4Mn2O4↔4LiMn2O4+Ti5O12}

_{Lithium cobalt oxide-LCO(LiCoO2):}

_{its high specific energy makes Li-cobalt the popular choice for mobile phones,laptops digital camer, power bank. the battery consists of a cobalt oxide cathode & a grapite carbon anode.}

_{the cathode has layered structure during discharge lithium ions move from the anode to cathode. flow reverses on charge. drawback of Li-cobalt is arelatively short life span,low thermanal stability & limited load capacity.}

_{Lithium Manganaese Oxide-LMO(LiMn2O4):}

_{Li-ion cell with lithium manganese oxide as cathode material.improves ion flow on the electrode. lower internal resistance and improved current handling. advajntage of spinal is high thermal stability and enhanned saftey but cycle and calender life are limited.}

_{low internal cell resistance enable fast charging and high current discharging,.Li manganese is used for power tools, mediacal instruments as well as hybrid & electric vehicle.}

_{Lithium Nickel Manganese Cobalt Oxide-NMC(LiNiMnCoO2):}

_{one of the most successful li-ion system is cathode combination of nickel manganese cobalt.similer to li-manganese system can be tailored to serve a energy cells or power cells.}

_{silicon added to graphite has the drawback that the anode grows and shrinks charge and discharge making the cell mechanically unstable.}

_{nickel is know as its high specific energy but poor stability.manganese has the benefit of forming a spinel structure to achive low internal resistance but offer a low specific energy.}

_{Lithium iron phosphate-LFP(LiFePO4):}

_{phosphate as cathode material for rechargeable lithium batteries.li-phosphate offers good electrochemicel performance with low resistance. benefits are high current rating and long cycle lifr , besides good thermal stability enhanced saftey and toleranece if abused.}

_{cold temperature also reduce performce of ir-ion & this could affect the cranking ability in cases.}

_{Lithium Nickel cobalt aluminum oxide -NCA(LiNiCoAlO2):}

_{its similarites with NMC by offering high specific energy , reasonably good specific power and along life span. less flattering are saftery and cost. NCA is a futher developement of litium nickel oxide.adding aluminum the chemistry greater stabiliy.}

_{Lithium Titanate oxide-LTO(Li2TiO3):}

_{battery with lithium titanate anodes have replace the anode a typical lithium ion battery and the material forms into a spinal structure.}

_{cathode can lithium manganes oxide or NMC.can be fast charged and delivers high discharge current.li-ttanate is safe has excellent low temperature discharge charateristics and obtains a capacity of 80% at 30c.}

_{conventional cobalt blended li-ion with graphite anode by attaining zero strain peoperty, no SEI film formating and no lithium plating when fast charging and charge low temperature.thermal stability underhigh temperature is also better then li-ion sytstem.}

_{2.Compare the differences between each type of Li+ion batteries based on their characteristics.}

_{the differnet between lithium and lithium-ion batteries is one is not rechargeble(primary cell) and chargeble (secoundary cell).lithium batterie have a shelf life up to four time longer than lithium-ion batteries and are also much cheaper and easier to make.}

_{the items we rely on to hold their charge for extended periods of time are best powered using lithium batteries.medical pacemaker or safety feature like a smoke alarm, lithium batterie are perferred as they last for so much longer.very rare lithium-ion batteries have been know to catch fire and explode. dont see from lithium batteries.}

_{Lithium Cobalt Oxide-LCO:}

_{the lithium cobalt oxide battery is a type of lithium ion battery ythat find uses in many consumer items of elctronic equipment.it provide a very high level of specific energy density along with a good level of safety.}

_{battery consists of a cobalt oxide cathode with alayered structure. anode is graphite(carbon). during the discharge cycle, lithium ions move from the anode to the cathode and is reverse direction during charge.}

_{the graphite anode limits the battery life as the soild electrolyte interface changes and also a result of anode thickening. batteries may incroporate nikel or managanese to improve the life time as well as reducing manufaturing cast.}

_{one of the disadvantage is LOC battery that its current capability in both cahrge and discharge is limited. its should not be charged or discharged at a greater rate that its capacity.2400mAh battery should not be charged or discharged with acurrent greater then2400mA. 0.8 charge level are recommended.}

_{LCO battery is now being supplanted in some application by lithium manganese. NMC &NCA types.result of improved performance of these other types as development improves the performance and reult of cost.}

_{Lithium iron phosphate battery-LFP:}

_{LFP type of lithium ion battery provides a low internal resistenace and high current capability. in order to provide its high of current capability.li-ion battery uses a nano scale phosphate cathode material.}

_{performance this type of lithium ion battery provides a slightly low terminall voltage and its has a higher self discharge rate than other forms. high current rating,good thermall stability combinaed with agood level of thermal stability.}

Lithium manganes oxide-LOM:

the first commercial lithium ion cells made with lithium manganese oxide as a cathode material produced in1996 by moli energy. its battery are notable for their high temperature stability and also safer than other lithium ion battery types.

they are used in medical equipemnt and devices but they may also be used un power toolds, electric bike and more. its also possible to use lithium manganese oxide batter to power laptops and electric powertrains car.

_{Lithium Nickel cobalt aluminum oxide-NCA:}

_{its becoming increasingly important in electric poertrains and gird storage. its battery are not common in the consumer industy, but are promising for the automotive industry.}

_{its battery provid a high energy option with a good lifesoan threy are not safe as they could be compared to ther lithium ion battery types and quite costly.}

Lithium Nickel manganese cobalt Oxide-(NMC):

NMC batteries include a cathode made of combination of nickel, manganese and cobalt.

lithium-ion battery varients NMC batteries can have either a high sepcific energy density or high specific power. battyery type is most common in power tools and in powertrains for vechicle.

cathode caombination ratio is usually 60% nickel,20%manganese &20 %cobalt. that raw material cost is lower then its other lithium ion battery option,as cobalt can be quit expensive.

some battery makers are planning to swith their battery chemistry to ahigher% of nickel so that can use less cobalt. this battery type is commonly perfered for electric vechicle due to its very low self heating rate.

Lithium titanum oxide-(LTO):

Finally lithium titanate its also known as li-titanate is a class of battery that allows for ever-increasing application.main advantage of li-titanate battery is remarkably fast rechareg time.

currently manufaturing of electric vehicle and bike use li-titanate batteries and there is potential for type of batteries to be used in electric buses for public transportation.

battery have lower inherent voltage or lower energy density then other lithium-ion battery varieties which can present issue with powering vehicles efficiently. the density of lithium titanate battery is still higher than other non-lithium-ion batteries.its a plus.

Types of Li-ion Battery	Nominal Voltage (V)	Life Cycle	Charge Current Rate	Discharge Current Rate	Specific Energy (WH/kg)	Advantage	Disadvantage	Application
LCO (Lithium Cobalt Oxide)	3 - 4.2	500 - 1000	0.7 - 1C	1C	150 - 200	High specific energy	Short life span, low thermal stability and limited load capabilities (specific power), Cobalt is expensive	Mobile Phones, Laptops and Digital Cameras
LMO (Lithium Manganese Oxide)	3 - 4.2	300 - 700	0.7 - 1C	1C	100 - 150	Lower internal resistance and improved current handling, high thermal stability and enhance safety	Cycle and Calendar life are limited	Power tools, Medical Devices, Electric Power Trains.
NCA (Lithium Nickel Cobalt Aluminium Oxide	3 - 4.2	500 - 1000	0.7C	1C	200 - 260	High specific energy, Reasonably good specific power, long life span.	High cost and marginal safety	Medical Devices, Industrial, Electrical Power Trains (Tesla).
NMC (Lithium Nickel Manganese Cobalt Oxide)	3 - 4.2	1000 above	0.7 - 1C	1 - 2C	150 - 220	Good overall performance and excels on specific energy, lowest self-heating rate	High Cost due to Cobalt	E-Bike, EV, Medical Devices, Industrial.
LFP (Lithium Iron Phosphate)	2.5 - 3.65	2000 above	1C	1C	90 - 120	High current rating and long cycle life, besides good thermal stability, enhance safety and tolerance if abused.	Higher self-discharge, less specific energy	Portable and Stationary needing high load currents and endurance
LTO (Lithium Titanate Oxide)	1.8 - 2.85	3000 - 7000	1C	10C	50 - 80	Fast charging, safe, high discharge current of 10C.	Low specific energy	UPS, Electrical Power Train (Mitsubishi i-MiEV, Honda Fit EV), Solar-Powered Street Light