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  • In solid-state ionics, a solid-state battery is a battery that has both solid electrodes and solid electrolytes.
  • Solid-state batteries generally fall into the low-power density and high-energy density category.
  • A battery’s electrolyte is the material through which ions (in this case lithium ions) pass from one electrode (the cathode) to another (the anode) inside a battery cell. The solid electrolyte LiI is formed in situ as the discharge product of the cell reaction.
  • Complete solid-state batteries offer several advantages over those with fluid components.
  • The applications of solid electrolytes have been to maintain a separation between two active electrodes, as key materials in sensing electrodes, and in reversible electrodes for high-energy batteries as well.
  • The first solid state electrolyte system received particular attention for switch applications is the Ag2S/Ag structure.
  • Solid state battery isolators use a micro-processor and FETs to control the On & Off connection between the two voltage sensitive terminal posts according to preset voltage of each terminal.
  • Solid state thin film lithium microbatteries fabricated by pulsed-laser deposition (PLD). Solid state batteries using solid-electrolyte have attractive advantages compared to conventional liquid-electrolyte batteries such as lead-acid batteries or nickel-cadmium cells.
  • Thin film batteries are built layer by layer by vapor deposition. The resulting battery is formed of parallel plates, much as an ordinary battery construction, just much thinner.
  • The discovery of fast ion conducting (FIC) materials and the consequent application of these materials in the fabrication of solid state batteries have overcome a number of inherent disadvantages with aqueous state cells.
  • Separators play a key role in all batteries. Their main function is to keep the positive and negative electrodes apart to prevent electrical short circuits and at the same time allow rapid transport of ionic charge carriers that are needed to complete the circuit during the passage of current in an electrochemical cell.
  • In solid polymer lithium-ion cells, the solid electrolyte acts as both electrolyte and separator.
  • Thin film batteries are solid state batteries, whose characteristic feature is, not surprisingly, that they are very thin. NanoMarkets analysts predict that the thin film and printable batteries market will climb from $13.9 million to more than $5.6 billion.
  • Solid state batteries need more work to become a large market. A low temperature deposition process for thin film batteries enables use of flexible, polymer foil as the substrate. This technology largely reduces the production cost of the thin film batteries.
  • The global market for thin-film and printed batteries at $182.5 million is expected to reach $3.6 billion. The total solid state batter market is anticipated to reach $ 20 billion sometime.

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