A Modified Solid State Synthesis of LiFePO4/C as Active Material for Lithium-ion Batteries
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Dennis Schünemann
Abstract
Solid state chemistry is already established as a conventional procedure for obtaining well-crystallized particles of LiFePO4 with ordered structure. The disadvantages of this method still are the uncontrollable particle growth and agglomeration, long reaction time and moreover the cost of production. The advantages of using 1-Hexadecanol as an additive to create a reducing atmosphere and additionally as a carbon source for the solid state method the existence of iron in the oxidation state Fe3+ can be prevented. The carbon coating can be controlled by the amount of the additive and the reaction conditions such as reaction time or reaction temperature. This modified synthesis cannot reduce the cost of energy but represents a simple variant to obtain both carbon coated LiFePO4 with a specific conductivity up to 10-2 S cm-1 and pure LiFePO4. The latter does not show any impurities as confirmed by Mös sbauer spectroscopy. The reaction time only takes three hours without any time-consuming preparations.
© by Oldenbourg Wissenschaftsverlag, Hannover, Germany
Articles in the same Issue
- Editorial
- Materials for Lithium Ion Batteries: Challenges for Numerical Simulations
- Investigation of Various Ionic Liquids and Catalyst Materials for Lithium-Oxygen Batteries
- Electrodeposition of Lithium/Polystyrene Composite Electrodes from an Ionic Liquid: First Attempts
- Mixtures of Ionic Liquids as Possible Electrolytes for Lithium Ion Batteries
- Azolylborates for Electrochemical Double Layer Capacitor Electrolytes
- Zinc-air Batteries: Prospects and Challenges for Future Improvement
- A Modified Solid State Synthesis of LiFePO4/C as Active Material for Lithium-ion Batteries
- Synthesis of LiFePO4 by Ultrasonic and Nozzle Spray Pyrolysis
Articles in the same Issue
- Editorial
- Materials for Lithium Ion Batteries: Challenges for Numerical Simulations
- Investigation of Various Ionic Liquids and Catalyst Materials for Lithium-Oxygen Batteries
- Electrodeposition of Lithium/Polystyrene Composite Electrodes from an Ionic Liquid: First Attempts
- Mixtures of Ionic Liquids as Possible Electrolytes for Lithium Ion Batteries
- Azolylborates for Electrochemical Double Layer Capacitor Electrolytes
- Zinc-air Batteries: Prospects and Challenges for Future Improvement
- A Modified Solid State Synthesis of LiFePO4/C as Active Material for Lithium-ion Batteries
- Synthesis of LiFePO4 by Ultrasonic and Nozzle Spray Pyrolysis
