Xem 1-20 trên 127 kết quả Electrolytes
  • Since the maintenance-free sealed nickel/cadmium accumulator became of high importance in the market, in the middle of the 1950s (Figure 17.1), the German battery company Sonnenschein has invented the first maintenance-free portable lead-acid batteries in small sizes in modules of 2 to 12 V between 1 and about 30 Ah. These batteries have been absolutely maintenance free and because of their immobilized electrolyte they could be used in any position without leakage.

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  • (BQ) Part 1 book "Clinical physiology of acid - base and electrolyte disorders" presents the following contents: Renal physiology, regulation of water and electroltye balance. Invite you to consult.

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  • (BQ) Part 2 book "Clinical physiology of acid - base and electrolyte disorders" presents the following contents: Physiologic approach to acid - base and electroltye disorders. Invite you to consult.

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  • Introduction: Other than in solutions or in ionic liquids, ionic conduction can take place in the solid state also. The solids that exhibit ionic conduction are called ‘solid-state ionic conductors’. Based on the charge of ionic species responsible for the conduction, they are divided into cationic and anionic conductors; then, based on specific species involved in the conduction, they are further subdivided into sodium ion conductors, proton conductors, fluorine ion conductors, and so on.

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  • Introduction: The rapid growth of the miniature electronic and computer-related industries has led to great demand for smaller and lighter batteries with improved safety, energy, and power characteristics. Lithium polymer batteries are expected to meet the above requirements and are thus considered as next-generation rechargeable batteries. The conventional lithium-ion batteries, which contain a large amount of liquid electrolyte, emit an appreciable amount of gas and this is attributed to the decomposition of a protective layer at the carbon surface. ...

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  • Introduction: The electrolyte solution is a major component of all battery systems and as such will greatly influence energy densities (thermodynamic properties such as Gibbs energy, enthalpy, and ionic activity) and power densities (nonthermodynamic properties such as viscosity, conductivity, and transference). The electrolyte solution consists of a liquid or solid phase containing at least one component, e.g., water, which is called the solvent, and an ionizable substance, e.g., a salt or an acid, which is called the electrolyte. ...

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  • Double-layer carbon supercapacitors (electrochemical double-layer capacitor (EDLCs)) based on two carbon electrodes of high surface area separated by an electrolyte are the most popular electrochemical supercapacitors. The charge process is electrostatic with charge separation at the two electrode–electrolyte interfaces. The EDLCs can thus be modeled with two capacitances in series with what is called equivalent series resistance (ESR).

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  • This paper describes the corrosion behaviour of the positive and negative electrodes of a lead–acid battery in 5 M H2SO4 with binary additives such as mixtures of phosphoric acid and boric acid, phosphoric acid and tin sulphate, and phosphoric acid and picric acid. The effect of these additives is examined from the Tafel polarisation curves, double layer capacitance and percentage of inhibition efficiency.

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  • The eight chapters in this book cover topics on advanced anode and cathode materials, materials design, materials screening, electrode architectures, diagnostics and materials characterization, and electrode/electrolyte interface characterization for lithium batteries.

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  • The origin of the electrolytic capacitor or condenser can be traced to the second half of the 19th century when the discovery was made (Wheatstone, Buff, Ducretet) that a film can be formed on aluminum electrochemically and that it will exhibit unidirectional electrical conductance and other peculiar properties. One of the early attempted applications of the electrolytic capacitor was in conjunction with the starting of single-phase induction motors; efforts were also made to utilize it for power factor correction in alternating current circuits.

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  • This paper is devoted to the development of a new lead acid battery electrolyte formulation for cycling applications, especially for renewable energy markets in developing countries. These emerging markets, such as solar home systems, require lead acid batteries at very low prices and improved performances compared to automotive batteries produced locally. The new acid formulation developed is a mixture of sulphuric acid, liquid colloidal silica and other additives including phosphoric acid.

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  • For decades, valve regulated lead acid batteries with gel electrolyte have proved their excellent performance in deep cycling applications. However, their higher cost, when compared with flooded batteries, has limited their use in cost sensitive applications, such as automotive or PV installations. The use of flooded batteries in deep or partial state of charge working conditions leads to limited life due to premature capacity loss provoked by electrolyte stratification.

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Polystyrene-Al2O3 composite solid polymer electrolyte for lithium secondary battery

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Multi-electrolyte-step anodic aluminum oxide method for the fabrication of self-organized nanochannel arrays

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  • The concentrations and charge strength of "spectator“ or non-reacting electrolytes The tendency to form precipitates will be decreased with increasing ionic strength 1) interactions (but not necessarily reactions) of the reactant species with other charged species 2) interactions of the charged product species with the spectator ions. H2O + H2CO3 H3O+ + HCO3Ka1 increases with increasing ionic strength, so the solution becomes more acidic.

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  • Tuyển tập các báo cáo nghiên cứu khoa học trên tạp chí khoa học vật lý quốc tế đề tài: Effects of Electrolyte Natures on the Formation of Well-Ordered Titania Nanotubes Produced Via Anodisation

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  • (BQ) Part 2 book "Textbook of biochemistry" presents the following contents: Electrolyte and water balance, metabolic diseases, free radicals and antioxidants, mineral metabolism and abnormalities, energy metabolism and nutrition, nucleotides chemistry and metabolism,... Invite you to consult.

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  • (BQ) Part 1 book "Essentials of Kumar and Clark's clinical medicine" presents the following contents: Ethics and communication, infectious diseases, gastroenterology and nutrition; liver, biliary tract and pancreatic disease; haematological disease, malignant disease, rheumatology, water, electrolytes and acid–base balance.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: The effectiveness of hand-disinfection by a flow water system using electrolytic products of sodium chloride, compared with a conventional method using alcoholic solution in an ..

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Modeling Electrolytically Top-Gated Graphe

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