Lithium Solid Polymer Electrolyte Batteries by Dan Hagopian
If you have ever owned a PDA, iPod or any other small electrical device the battery power more often then not incorporated a technology called lithium polymer, a technology that is not only amazing but functional. This amazing technology is contained in the electrolyte solution that is the... Some of the benefits that lithium solid polymer electrolytes offers are: ease of manufacturing immunity from leakage suppression of lithium dendrite formation elimination of volatile organic liquids mechanical flexibility.

Lithium ion Rechargeable Batteries by Dan Hagopian
Lithium ion rechargeable batteries are by far one of the most important technologies that have been developed over the last 10 years. Lithium based batteries are used in most portable devices from PDAs to laptops to digital cameras. Lithium ion rechargeable batteries are not hazardous when... In some of the lithium batteries at www.BatteryShip.com for example the electrolyte is a gel-like polymer film that allows ion exchange. ... The electrolyte is held within a dry cell which is a galvanic electrochemical cell containing the pasty electrolyte.

PDA Battery Degradation and Power Loss by Dan Hagopian
Extending your PDA Battery Life so that you get the most cost effective use of your PDA battery begins with always keeping a spare pda battery replacement. PDA batteries are cheap enough that owning a backup pda battery makes absolute sense. Beyond a spare pda battery replacement you can use... If you are using a pda battery (or any lithium-ion or lithium-polymer battery) when your battery's capacity reaches 60% to 70% the pda battery will need to be replaced. ... Loss of Charge Acceptance The loss of charge acceptance of the Li‑ion/polymer batteries is due to cell oxidation.

Integrated Power Management Circuits by Dan Hagopian
Discussing internal battery design would be incomplete if we did not write on the subject of integrated circuits. Batteries for PDAs, MP3s, Digital Cameras, and Laptops have designed within them integrated power management circuits that insure that the deliverance of reliable power is properly... A real example of a battery pack protector circuit is a Texas Instrument two-cell lithium-ion (Li-Ion) and lithium-polymer (Li-Pol) battery pack protector device. ... The device’s primary function is to protect both Li-Ion and Li-Pol cells in a two-cell battery pack from being either over-charged...

How Long will My iPod Video Play? by Dan Hagopian
Is it true the ipod video (fifth gen ipod) will hold a charge for up to 20 hours? Let's see! First of all the legal fine print on Apple's iPod page explicitly refers to the 60 Gb iPod Video only being able to play (hold a charge in the battery) up to 20 hours. ... If you are using an ipod battery (or any lithium-ion or lithium-polymer battery) when your battery's capacity reaches 60% to 70% the pda battery will need to be replaced. ... iPod batteries that have a chemistry design of either lithium ion or lithium polymer will over time regardless of usage will experience power loss to the...

How Do Batteries Work by Dan Hagopian
A battery is a device that converts chemical energy into electrical energy. The basic design of a battery includes two electrodes, an anode (the positive end) and a cathode (the negative end). In between the battery’s two electrodes runs an electrical current caused primarily from a voltage... The technical specs are: • Polymer Lithium • 3.7 volts • 1600 mAh • 100% OEM compatible. ... The electrolyte is held within a dry cell which is a galvanic electrochemical cell containing the pasty electrolyte.

Internal Battery Design by Dan Hagopian
The wireless revolution, the prolific use of PDAs, MP3s, MP4s, Laptops, Cell Phones, Smartphones, DVD players, and other portable devices have increased the need for smart and high capacity portable batteries. Portable batteries however are not typical in design. ... General Characteristics of Lithium Name: lithium Symbol: Li Atomic number: 3 Atomic weight: [ 6.941 (2)] g m r CAS Registry ID: 7439-93-2 Group number: 1 Group name: Alkali metal Period number: 2 Block: s-block Standard state: solid at 298 K color: silvery white/grey Classification: Metallic Lithium is used,...

Battery Wars - This 'Is' the New Wireless Frontier by Dennis Schooley
I can picture it now. Luke Skywalker and Darth Vader face off for an epic light-saber battle to the death! The fate of the world hangs in the balance! Then their light-saber batteries run out of juice so they’re left holding onto a couple of limp licorice sticks, resulting in a leg-wrestling... Backer, Ross Dueber, makes the point about current lithium alternatives; “It’s the only rechargeable battery technology that uses flammable liquid.” 4) Lithium polymer uses an advanced gel to create a power source as thin as paper.