Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Positive electrolyte-negative electrode

The SOFC consists of cathode, electrolyte and anode collectively referred to as the PEN - positive electrode, electrolyte, negative electrode. A single cell operated with hydrogen and oxygen provides at equilibrium a theoretical reversible (Nernst) or open circuit voltage (OCV) of 1.229 V at standard conditions (STP, T = 273.15 K. i> = 1 atm). With the standard electrode potential E°, universal gas constant R. temperature T. Faraday s constant F, molar concentration x and pressure p, the OCV is given by... [Pg.4]

Another simplification of the model, widely used when modelling SOFC operation, is to consider the Positive electrode/Electrolyte/Negative electrode (PEN), as a lumped structure. Figure 3. 4 shows a schematic representation of a planar SOFC, when the PEN structure is considered in a ID domain. [Pg.71]

Letter Positive electrode Electrolyte Negative electrode Nominal voltage (V)... [Pg.385]

Separators in lithium ion batteries must separate positive electrodes and negative electrodes to prevent short circuits, and must allow passage of electrolytes or ions. Porous films and nonwoven fabrics of resins are known separators. The lithium ion battery separators are also required to exhibit stable properties at high temperatures such as in charging, and therefore high heat resistance is desired (21). [Pg.121]

Life-cycle impact Negative electrode Positive electrode Electrolyte matrix Bipolar plate Total Unit... [Pg.369]

No. Type Negative electrode Positive electrode Electrolyte C/o [V] fis.th [Wh/kg] Ref. Remarks... [Pg.378]

Recentry, SPE have attracted much attention because they will be especially advantageous for high-ionic condnctivity and high processability. Generally, batteries using SPE for three main elements, such as positive electrode, electrolyte, and negative electrode, are called polymer batteries . [Pg.413]

Batteries are of many different types, but they all produce an electric current via a circuit using a positive electrode, a negative electrode and an electrolyte acting as an ionic conductor. If the electrolyte is liquid, the battery is called Vet and if it is a powder or paste it is called dry . Some batteries are re-chargeable. [Pg.838]

It is a rechargeable battery and consists of the following main materials positive electrode, negative electrode, electrolytes, and separators. However, in some reports, the positive electrode and negative electrode are called as cathode and anode, respectively. Scientifically speaking, this calUng is not pertinent. [Pg.105]

This chapter looks at different electrodes that are used or are under investigation, taking an interest in their properties first positive electrodes, then negative electrodes, then electrolyte and finally current collectors. In order to work on an electrode, electrochemists often combine it with a counter-electrode made of metal lithium. They refer to this setup as a half celfi (although the cell is complete, with both of its electrodes), because it is assembled in a coin-cell-type casing, which is easy to use in the laboratory. [Pg.136]

Separator is a cmcial component of the liquid electrolyte battery, its essential role is to isolate the positive electrode and negative electrode from physical contact while permitting free flow of ions. The separator itself does not participate in any cell reactions, however, its properties significantly affect the performance and safety of... [Pg.349]

The GC spontaneously converts chemical energy into electric energy. In an EC, electric energy of a battery (a dc power supply) is used to produce chemicals. A fuel cell is a GC in which fuel is used as one of the cell chemicals. The cathode (and the anode) can be either positive or negative. In a GC, the cathode is positive, and in an EC, the anode is positive. If an electrochemical cell can work in both modes (galvanic and electrolytic), each of the electrodes can be either the cathode or the anode. However, the electrode polarity remains the same. In a rechargeable battery, the electrodes should be called positive electrode and negative electrode. [Pg.47]


See other pages where Positive electrolyte-negative electrode is mentioned: [Pg.522]    [Pg.130]    [Pg.132]    [Pg.147]    [Pg.207]    [Pg.233]    [Pg.130]    [Pg.132]    [Pg.147]    [Pg.207]    [Pg.226]    [Pg.152]    [Pg.522]    [Pg.130]    [Pg.132]    [Pg.147]    [Pg.207]    [Pg.233]    [Pg.130]    [Pg.132]    [Pg.147]    [Pg.207]    [Pg.226]    [Pg.152]    [Pg.5]    [Pg.1307]    [Pg.332]    [Pg.136]    [Pg.319]    [Pg.385]    [Pg.319]    [Pg.838]    [Pg.140]    [Pg.20]    [Pg.316]    [Pg.11]    [Pg.326]    [Pg.585]    [Pg.5]    [Pg.38]    [Pg.136]    [Pg.901]    [Pg.956]    [Pg.1319]    [Pg.179]   


SEARCH



Electrode electrolytes

Electrode negative

Electrode positive

Electrolyte positive

Negative-positive

© 2024 chempedia.info