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Topic: Lithium polymer

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	How to Choose Between Lithium ION and Lithium Polymer Batteries - Ultralife Batteries, Inc. \| Engineers
		Early polymer cell and battery designs were very similar to that of conventional lithium ion batteries, offering no significant points of differentiation or enhanced product features and application engineers could not justify the tradeoffs with regard to increased design costs with the promised safety enhancements afforded by lithium polymer designs.
		Lithium ion batteries consist of a cathode of lithiated metal oxide or phosphate, and a graphite anode separated by a polyethylene or polypropylene separator material in a non-aqueous electrolyte.
		Lithium polymer batteries have the same common electrochemistry as conventional lithium ion batteries – they have a lithiated oxide cathode and a graphite anode held together in a binder matrix of polyvinlydiene fluoride and coated and/or laminated to a current collector grid.
	www.ulbi.com /engineers.php?ID=4 (822 words)

	lithium polymer electrolytes (Site not responding. Last check: 2007-11-02)
		Ion-conducting polymers are solutions of salts in polymers in which a macroscopically solid state is achieved by entanglement or cross-linking.
		In this effort we are investigating the effects of the polymer host on ion solvation and the attendant effects of ion pairing, which strongly affect the ionic transport in these systems.
		The interaction of a lithium cation with the oxygens is being investigated, and the potential energy surfaces are being calculated to obtain potentials that are being used in molecular dynamics simulations.
	chemistry.anl.gov /compmat/lipeo.htm (568 words)

	Energy Sales Distributor of Lithium Polymer Batteries
		Lithium polymer batteries provide the highest energy density, have no "memory effect", have a wide operating temperature range, great charge retention, initial high cost, high service life, and are rated non-hazardous for air transportation and disposal.
		Lithium polymer cells are 3.6-3.7 volts (nominal) and range between 500 mAh to 3,000 mAh in capacity.
		The cells can be cycled more than 500 times and have an operational temperature range from -20 degrees C to +60 degrees C. Common applications for the lithium polymer batteries are pagers, cellular phones, camcorders, computers, and medical equipment.
	www.energy-sales.com /lithiumpolymer.html (115 words)

	Lithium Polymer Batteries
		Lithium battery packs are listed by the number of cells in series followed by the number of cells in parallel.
		Lithium batteries are not only rated in voltage and mah, but also in C (capacity) which rates the battery's ability to efficiently provide very high currents.
		A Lithium battery 5S2P pack made from ten 2200 mah cells, each with a C rating of 2 (typical for a Lithium Ion pack, is able to provide 8800 ma (2200 x 2[P] x 2{c}) All the electricity in the packwill be used up in a half hour, however.
	www.ultimatecharger.com /LiPo.html (2130 words)

	Sanyo > Lithium Polymer
		SANYO has developed a lithium polymer battery that is ultra-thin (under 4mm) and ultra-light with superior performance, SANYO reliability, and new technology developed in our labs.
		Lithium polymer batteries employ a new gel-type electrolyte to provide power to the most demanding application in the hand-held world.
		By using a super-light laminated aluminum film for the extrnal packaging, our high-erformance lithium polymer batteries are suitable for all applications where wieght, size, and durability are critical factors.
	www.sanyo.com /batteries/lithpol.cfm (280 words)

	Lithium ion polymer battery - Wikipedia, the free encyclopedia
		Early in its development, lithium polymer technology had problems with internal resistance.
		However, lithium polymer-specific chargers are required to avoid fire and explosion.
		The idea is to use an ion-conducting polymer instead of the traditional combination of a microporous separator and a liquid electrolyte.
	en.wikipedia.org /wiki/Lithium_polymer (1147 words)

	Lithium-ion Polymer Poised
		After years of diligent chemistry, engineering and manufacturing growth, the industry was set to capture the new and replacement applications which polymer was best suited for, but who was to know that 2001 would be the year of the electronic market retreat.
		With their refillable fuel tanks, they may not win the space competition with polymer, but their high total energy delivered, low costs and convenient refuelling may be embraced by product designs which get around thickness and shape issues.
		Polymer still has a few years to establish its special features before micro fuel cells become a force in the market, if ever.
	www.batteriesdigest.com /lithium_ion_polymer_poised.htm (1348 words)

	Technology Review - Solar Power, Batteries Included (Site not responding. Last check: 2007-11-02)
		Lithium polymer, as it's usually called, tops good battery performance with a high degree of malleability—which may allow it to be integrated into solar panels and other useful locations.
		Proponents note that lithium polymer has proved safer than its sometimes-volatile predecessor, liquid lithium ion, and is now showing up in cell phones.
		Lithium polymer also has three times the energy density of the nickel cadmium (NiCad) rechargeables now ubiquitous in notebook computers, cell phones and toys.
	www.lithiumpower.com /PressRelease/Articles/essex081701.asp.html (559 words)

	DailyTech - Sony Says Lithium Polymer to be Next Notebook Battery (Site not responding. Last check: 2007-11-02)
		The ongoing development of lithium polymer battery technology is of particular interest to Sony, Dell, Apple, Lenovo, Toshiba and all other OEMs affected by numerous battery recalls over the past year.
		Lithium polymer, on the other hand, stores the lithium in a solid polymer composite, which is a much more stable design than lithium ion.
		Lithium polymer is a 20 percent improvement over lithium ion battery (of the same size) in energy density, thanks to fewer restrictions in the way the battery must be packaged.
	dailytech.com /article.aspx?newsid=5297 (2178 words)

	Solid polymer electrolyte lithium
		This promising lithium rechargeable technology is using a polymer electrolyte in a solid state cell in which a polymer electrolyte is sandwiched between a lithium metal film and a metal film.
		By dissolving lithium, not into a liquid electrolyte but into a really thin polymer (plastic), a high-power battery is realized that is light, yet durable.
		Dissolution of the polymer into these melt-glass-electrolytes produces a rubbery version of a glassy electrolyte with a thousand-fold increase in lithium ion mobility.
	www.corrosion-doctors.org /Secondaries/li-poly.htm (424 words)

	The next notebook battery? Lithium polymer \| Tech News on ZDNet
		Lithium polymer batteries use lithium as an active ingredient.
		Lithium is a volatile material, but the lithium in these batteries isn't packed into cells as it is in lithium ion batteries.
		Despite their struggles, industrial designers have always liked lithium polymer because gel packs can be squeezed into devices' empty spaces.
	news.zdnet.com /2100-9584_22-6141711.html (698 words)

	EETimes.com - Matsushita begins lithium polymer battery production
		But lithium polymer offers no power enhancements over lithium ion, and at least one company is asking whether the new chemistry will offer a sufficient advancement in battery profile to justify the cost of development.
		The company already offers 5-mm-thick lithium ion batteries and has said that a distinct differentiation between the current and emerging chemistries is essential if polymer batteries are to find a market.
		Arranged as a stack, the Matsushita lithium polymer battery incorporates a cobalt oxide lithium film cathode, a carbon film anode and a polymer between the electrodes.
	www.eetimes.com /story/OEG19990121S0013 (835 words)

	LPC-400 Lithium Polymer Charger (Site not responding. Last check: 2007-11-02)
		The charge cycle is microprocessor controlled and adheres to the charging specifications of all "Lithium Polymer" battery manufacturers.
		The charger is capable of charging lithium polymer (Lithium-Ion-Polymer) cells ranging in capacities from 45 mAh - 3000+ mAh.
		Plantraco's Lithium Polymer Battery Charger is an essential item for the hobbyist interested in using these new lightweight, high energy cells.
	www.plantraco.com /hobbies/product-charger.html (705 words)

	Lithium Ion Batteries
		Lithium ion batteries use lithium metallic oxide in its positive electrode (cathode) and carbon material in its negative electrode (anode).
		Lithium ions inside the battery transfer between the positive electrode and the negative electrode during charge or discharge.
		Lithium polymer batteries use a gel-type electrolyte to provide power.
	www.batteryprice.com /lithium-ion-batteries/index.html (294 words)

	Valence - FAQ (Site not responding. Last check: 2007-11-02)
		Lithium-ion polymer batteries have high voltage per cell (3.8 volts avg.) and excellent energy on both a weight and volume basis.
		Lithium-ion polymer batteries use liquid Lithium-ion electrochemistry in a matrix of conductive polymers that eliminate free electrolyte within the cell.
		Lithium-ion polymer batteries from Valence can be made in a very large "footprint" and can also be made very thin to accommodate a wide range of customer applications in mobile computing and telecommunications.
	www.valence.com /faq.asp?topic=lithium (680 words)

	The Li-Polymer battery: substance or hype?
		The polymer electrolyte replaces the traditional porous separator, which is soaked with electrolyte.
		Since the hybrid lithium polymer is the only functioning polymer battery for portable use today, we will focus on this chemistry variation but use the correct term of lithium ion polymer (Li-ion polymer).
		Although the characteristics and performance of the two systems are very similar, the Li‑ion polymer is unique in that the solid electrolyte replaces the porous separator.
	www.buchmann.ca /Article6-Page1.asp (1691 words)

	LITHIUM-POLYMER BATTERY
		The Lithium Polymer battery relies on thin-film technology, with composite films that are only 100 microns thick.
		Lithium is a very reactive metal and there’s a lot of concern out there about the safety of a lithium battery.
		According to 3M, they will be ready to produce commercial Lithium Polymer EV batteries by year 2000.
	www.rqriley.com /sld007.htm (255 words)

	Rechargeable Lithium-Polymer Batteries
		Lithium-Polymer batteries are often confused with Lithium-Ion or non-rechargeable Lithium batteries.
		They differ from Lithium batteries in three major ways: LiPos are rechargeable, they have non-standard shapes and a nominal cell voltage of 3.7 volts.
		The main difference from Lithium-Ion batteries is that LiPos have a non-liquid dielectric and are (sometimes) capable of higher discharge rates of 20C and greater.
	www.ae5x.com /LiPo.htm (322 words)

	Lithium Polymer Digital Camera Batteries
		Unlike lithium ion batteries, which must be housed in a metal container, typically in a disc, cylindrical or rectangular form, lithium polymer batteries are produced as thin sheets that can be folded, stacked or otherwise shaped to fit the battery container, and can be contained in a metal-lined plastic pouch.
		Otherwise, lithium ion polymer batteries have performance characteristics similar to lithium ion batteries.
		Since their introduction, lithium ion polymer batteries have been used in some premium mobile telephones and other wireless devices.
	www.thomas-distributing.com /lithium_polymer_info.htm (258 words)

	News Bits: ATI Losing Market Share, Lithium Polymer Batteries, Asus G1P Reviewed - Notebook Forums and Laptop Discussion
		Lithium polymer batteries still use lithium as an active ingredient, but the lithium is not put into cells as in Li-ion batteries; it is contained in a polymer gel.
		Polymer gel does not have the same energy density as lithium ion batteries, although this is not a bad thing.
		The energy density of lithium ion batteries has been increased by battery manufacturers; if an internal short occurs, a chain reaction can be set off and start a fire.
	forum.notebookreview.com /showthread.php?p=1699416 (1391 words)

	Lithium Polymer Battery (Site not responding. Last check: 2007-11-02)
		Below this temperature, higher conductivity can be achieved by adding solvent to the polymer electrolyte, but the solvent compromises the electrolyte’s dimensional and thermal stability.
		The result is a polymer with nanoscale channels of ionically conducting PEO alternating with concentrations of the rigid rods.
		Solid polymer lithium batteries offer many advantages over other battery designs, including low cost, lightweight, high specific energy, improved safety and flexible design.
	www.glitec.org /techJuly05.htm (290 words)

	EETimes.com - Mixed demand greets lithium-polymer batteries
		But lithium electrolyte is unstable: In liquid form it is highly flammable and, in some cases, explosive.
		The Kynar resin polymer serves as a binder and separator (microporous isolating material for electrolytes) for batteries using lithium-ion polymer technology developed by Bellcore (Morristown, N.J.).
		The Bellcore formulation is a hybrid, with a lithium electrolyte in a gel (rather than liquid) form.
	www.eetimes.com /story/OEG19981008S0013 (976 words)

	Lithium Battery Breakthrough - Lipo Batteries
		Lithium Polymer batteries are the latest technology and offer several times the capacity/run time of previous generation Nickel Cadmium and Nickel Metal Hydride batteries, with reduced weight and size.
		Plus the latest generation LiPo (short for Lithium Polymer) cells have a low internal resistance, so they're able to provide high amp draw for powering high-performance and even large-scale models.
		Individual Lithium Polymer cells have a nominal voltage of 3.7 volts (vs. 1.2volts per cell for Ni-Cds).
	www.rchobbies.org /lithium_battery_breakthrough.htm (968 words)

	Lithium Polymer Packs
		Lithium batteries can be connected in series to increase voltage, and series packs can be connected in parallel to increase capacity (and therefore the maximum current available – remember “C”).
		Hyperion VX Lithium Polymer Batteries are only approved for RC use, and may not be used in any other application.
		Because the majority of Lithium Battery problems after initial use are due to over charge/discharge of the packs, if is difficult to determine cause of failure "after the fact" in most cases, and sometimes requires inspection at the manufacturer.
	www.atsrcplanes.com /lithiumpolymerpacks.htm (3036 words)

	Thin (1 mm) to Ultrathin (0.5 mm) Rechargeable Lithium Polymer Cells from PowerStream
		Lithium ion cells are used in a wide variety of portable equipment and instruments.
		PowerStream has qualified this factory as being one of the premier factories for lithium polymer cells.
		thin lithium polymer, thin lithium ion cells, lithium polymer battery cells, li-poli thin cell, thin lithium batteries, ultra thin lithium battery
	www.powerstream.com /thin-lithium-ion.htm (566 words)

	PMBL UK - Rechageable Lithium Polymer Cells (Site not responding. Last check: 2007-11-02)
		Since the hybrid lithium polymer is the only functioning polymer battery for portable use today, we will focus on this chemistry.
		Although the characteristics and performance of the two systems are very similar, the Li-ion polymer is unique in that it uses a solid electrolyte, replacing the porous separator.
		One of the advantages of the Li-ion polymer, however, is simpler packaging because the electrodes can easily be stacked.
	www.pmbl.co.uk /lipolymer.htm (780 words)

	Rechargeable Lithium Polymer Cells from PowerStream
		Lithium polymer cells have a better form factor than cylindrical cells for a variety of applications, such as cell phones, PDAs, cameras.
		(3) The lithium polymer battery should be charged in a safe manner, and never overcharged or overdischarged.
		polymer lithium ion cells, lithium polymer battery cells, li-poli prismatic cell
	www.powerstream.com /li-pol.htm (388 words)

	Lithium polymer and Lithium Ion — Eflight 101 (Site not responding. Last check: 2007-11-02)
		A comprehensive review of pros and cons of Lithium, together with some nice graphs showing voltage and resistance suring discharge and comparisons between lithium and the older technologies.
		Brief technical specs for charging lithium ion and lithium polymer batteries.
		Short article giving guidelines for charging and flying with lithium batteries, as well as what to do in case of a crash.
	www.eflight101.com /batteries/lipoly (230 words)

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