Solid Polymer Electrolyte
Solid Polymer Electrolyte - Related Videos
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
0 Views •
2013
Lithium ion batteries employ flammable and volatile organic electrolytes that are suitable for ambient temperature applications. A safer alternative to organic electrolytes are solid polymer batteries. Solid polymer batteries operate safely at high temperatures (>120 °C), thus making them applicable to high temperature applications such as deep oil drilling and hybrid electric vehicles. This paper will discuss (a) the polymer synthesis, (b) the polymer conduction mechanism, and (c) provide...
08:55
Electrolytic Cells - Student Protocol
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2020
Source: Smaa Koraym at Johns Hopkins University, MD, USA Electrolytic CellsExpand In this experiment, you will be assembling an electrolytic cell to perform electroplating. An electrolytic cell contains an anode and cathode connected by a power source, which drives the nonspontaneous redox reaction in the cell. When the anode material is oxidized, the ions travel to the cathode, where they are reduced and plated. In the case of this experiment, the electrolytic cell contains a copper anode...
02:52
Electrolytic Cells - Concepts
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2020
Electrochemistry Electrochemistry is a branch of chemistry that describes and measures the relationship between electrical energy and a chemical change. Electrochemical reactions involve the movement of electrons from one species to another. If the reaction is spontaneous, it can result in a generated current. If the reaction is not spontaneous, it can be driven by the application of current. In electrochemistry, the key reaction is the oxidation-reduction reaction, called a redox reaction. The...
13:42
Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets
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Cited by 40 •
2011
A simple and general manual peptoid synthesis method involving basic equipment and commercially available reagents is outlined, enabling peptoids to be easily synthesized in most laboratories. The synthesis, purification and characterization of an amphiphilic peptoid 36mer is described, as well as its self-assembly into highly-ordered nanosheets.
02:21
Electrolyte and Nonelectrolyte Solutions
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2020
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution. Other examples of...
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Coordinating chemical groups on the polymer chains interact with the dissolved salt and help host its ions within the matrix. Ion movement then depends on segmental motion, meaning local movement of polymer-chain sections that creates pathways for migration. Under an electric field or a concentration gradient, these mobile ions carry charge through the material rather than through a free-flowing liquid.
Conductivity, mechanical strength, and stability form a central engineering tradeoff. Increasing the material’s ability to transport ions cannot be considered separately from whether it can maintain structural integrity and remain stable during device operation. Engineers therefore assess these properties together, because a useful electrolyte must support charge transport while also functioning reliably as a separator or electrolyte.
Replacing a free-flowing liquid with an ion-conducting polymer changes the design priorities. The polymer format resists leakage and can provide mechanical adaptability, while its nonflammability can improve safety. Unlike a liquid system, however, the material must simultaneously deliver adequate ionic conductivity and structural performance. This difference makes polymer electrolytes attractive where flexible construction and safer device integration matter.
Preparation begins by selecting a polymer containing chemical groups that can coordinate ions, then incorporating a dissolved salt as the source of mobile charge carriers. The resulting material must be integrated so it can serve as both an ion-transport medium and, where required, a separator. Its final suitability is judged by the balance among conductivity, strength, and stability.
They can serve as electrolytes and separators in solid-state batteries, fuel cells, supercapacitors, and sensors. In each case, the material combines charge transport with a solid, adaptable form that avoids liquid leakage. This role is especially relevant when device architecture must prioritize safety, mechanical flexibility, or reliable integration alongside electrochemical operation.
Evaluation should determine whether ions move effectively under an electric field or concentration gradient, whether the polymer retains enough strength to support device structure, and whether it remains stable in operation. Engineers also consider safety benefits such as nonflammability and leakage resistance. These criteria reveal whether the material can meet the demands of a particular battery, fuel cell, supercapacitor, or sensor.