What's the difference between a colloid battery and a lead-acid battery?

The lead-acid battery includes two categories, colloid and liquids battery. These two batteries are used according to the regional division. Gel battery has good cold tolerance. It can work under -15℃, and its work efficiency is much better than the liquid battery. It also has nice heat preservation performance. If you live in a low temperature in winter, you can select gel battery.

Liquid battery also has its characteristic, its cooling ability is stronger, more suitable for more than 38 degrees in the summer the region, the temperature environment, if choose colloid when riding long easily cause the battery heat, appear even the phenomenon of the drum.

So the two forms of battery no absolute good or bad, see you for to choose.

Gel battery is better.

Classification of gel battery is a kind of lead-acid battery development, the simplest approach, is added in the sulfuric acid gelling agent, sulfuric acid electro-hydraulic colloidal becomes. Electro-hydraulic of colloidal battery often called gel battery.

Broadly speaking, the difference between gel battery and conventional lead-acid battery is not just about electro-hydraulic to gel. Solidification states such as water-based gel, look from electrochemical classification structure and characteristics belong to gel battery. And like a knot in the plate grid with high polymer material, commonly known as the ceramic plate gate, can be regarded as the application characteristics of gel battery. Recent laboratory existing in plate, a targeted coupling agent is added to the formula has greatly increased the plate, the utilization of active substance reacts according to nonpublic information can reach 70 wh/kg weight than energy level, these are the current industry practice and needs to be industrialized application example of gel battery.

The difference between gel battery and conventional lead-acid batteries, from the initial understanding of gel electrolyte, a further development to research infrastructure of electrolyte electrochemical properties, and the application of sheeting and active substances. Its most important characteristic for: use a smaller industrial cost, along the 150 - year history of the lead-acid battery industry way to create more high-quality batteries, its flat discharge curve, inflection point, high specific energy, especially more than 20% higher power than conventional lead-acid batteries, life in general, about twice the length of a conventional lead-acid battery, high temperature and low temperature properties is much better.

Gel battery of electric vehicles the characteristics:

Water loss less: oxygen cycle design, which is beneficial to the diffusion of O2 channel, precipitation of O2 and more negative electrode material, form the recombination, so in the process of charging and discharging, less gas evolution, both water loss less.

Aside time: has good plate sulphation and reduce board gate corrosion resistance, long storage period.

Self-discharge less: can hinder the cathodic reduction of generated when water diffusion effect and inhibition of PbO spontaneous reduction reaction. So the self-discharge less

Good low-temperature startup performance: due to the sulfuric acid electrolyte exists in colloid, its internal resistance is bigger, but not at low temperature gel electrolyte resistance changes, so its low-temperature startup performance is good.

High charging efficiency: special charging mode, can make the active matter fully activated, increase the battery capacity.

Long life: scientific gel electrolyte specific gravity, not easy to cause the plate, under normal use, cycles in more than 550 times.

Good environmental protection and practicality: due to solid state electrolyte, even inadvertently occur in battery shell is broken, and can still normal use, and there is no liquid sulfuric acid.

Gel battery belongs to a classification, development of lead-acid batteries is added in the sulfuric acid gelling agent, sulfuric acid electro-hydraulic colloidal becomes. Electro-hydraulic of colloidal battery often called gel battery.

The difference between gel battery and conventional lead-acid batteries, from the initial understanding of gel electrolyte, a further development to research infrastructure of electrolyte electrochemical properties, and the application of sheeting and active substances. Its most important characteristic for: use a smaller industrial cost, produce better quality battery, its flat discharge curve, inflection point is high, the energy and power to more than 20% larger than conventional lead-acid batteries, life is also a conventional lead-acid battery is twice as long or so commonly, high temperature and low temperature properties is much better.

Electric car industry knowledge fell 2010-01-07: gel battery classification is a kind of lead-acid battery development, the simplest approach, is added in the sulfuric acid gelling agent, sulfuric acid electro-hydraulic colloidal becomes. Electro-hydraulic of colloidal battery often called gel battery. Broadly speaking, the difference between gel battery and conventional lead-acid battery is not just about electro-hydraulic to gel. Solidification states such as water-based gel, look from electrochemical classification structure and characteristics belong to gel battery. And like a knot in the plate grid with high polymer material, commonly known as the ceramic plate gate, can be regarded as the application characteristics of gel battery. Recent laboratory existing in plate, a targeted coupling agent is added to the formula has greatly increased the plate, the utilization of active substance reacts according to nonpublic information can reach 70 wh/kg weight than energy level, these are the current industry practice and needs to be industrialized application example of gel battery. The difference between gel battery and conventional lead-acid batteries, from the initial understanding of gel electrolyte, a further development to research infrastructure of electrolyte electrochemical properties, and the application of sheeting and active substances. Its most important characteristic for: use a smaller industrial cost, along the 150 - year history of the lead-acid battery industry way to create more high-quality batteries, its flat discharge curve, inflection point, high specific energy, especially more than 20% higher power than conventional lead-acid batteries, life in general, about twice the length of a conventional lead-acid battery, high temperature and low temperature properties is much better.412 HTML "battery school in China"

Colloid lead-acid storage battery is the improvement of ordinary lead-acid battery liquid electrolyte, by substituting colloid electrolyte sulphuric acid electrolyte, in safety, storage capacity, discharge performance and service life than ordinary batteries have improved.

Colloid lead-acid storage battery using gel electrolyte, inside there is no free fluid, electrolyte under the same volume large capacity, heat capacity, heat dissipation ability strong, can avoid battery are prone to thermal runaway phenomenon; The electrolyte concentration is low, weak corrosion effect of plate; Concentration is uniform, there is no electrolyte stratification.

Colloid lead-acid battery performance is better than that of valve-control sealed lead-acid battery, colloid lead-acid battery has the use of stable performance, high reliability, long service life, temperature adaptability to the environment (high and low temperature), take a long time discharge capacity, cycle discharge capacity, depth of discharge and large current discharge ability is strong, have over charge and discharge protection, etc.

The domestic colloid lead-acid battery for electric bicycle is by vacuum infusion in the lining of the AGM, the silica gel and sulphuric acid solution between irrigation to the battery positive and negative plate. Colloid lead-acid battery to oxygen cycle at the beginning of use, this is because the colloid has surrounded the positive and negative plate, positive plate of oxygen diffusion to the negative plate to the above, cannot be achieved with the active material of lead on the negative plate reduction, can only through the exhaust valve, consistent with rich liquid type battery.

Colloid lead-acid batteries used for a period of time after colloid began to dry and shrinkage, cracks, oxygen cycle through the cracks directly to the negative plate. Exhaust valve no longer often open, colloid lead-acid battery is close to sealing work, little water loss. So for electric bicycle battery is main failure mechanism of water loss, the colloid lead-acid battery can obtain very good results. Gel electrolyte is through add gels to sulfuric acid in the electrolyte solidified into colloidal substances, usually in the colloidal electrolyte with colloid stabilizer and compatibilizers, some gel formula with delay colloid solidification and retardant, so that the colloid filling.

The gas phase silica

Colloidal battery gels for gas phase silicon dioxide, the gas phase method of silica is a kind of high purity white odorless nano material, with a thickening, anti-caking, rheology and thixotropy control system, and so on, in addition to the traditional application, in recent years has been widely used in the colloid storage battery.

Gas phase method of silica is silicon halide in the oxyhydrogen flame high temperature hydrolysis of nanoscale white powder, commonly known as fumed silica, it is a kind of amorphous silica products, primary particle size between 7 ~ 40 nm, aggregate particle size is about 200-500 nm, specific surface area of 100 ~ 400 m2 / g, high purity, SiO2 content of not less than 99.8%.Did not deal with the surface of the gas phase silica aggregate is contain a variety of hydroxyl groups, one is isolated, not interference free hydroxyl groups;2 it is even born, each other to form hydrogen bond bonded silicon hydroxyl. Did not deal with the surface of fumed silica aggregation is an aggregate of containing multiple - OH, they are easily in the fluid system form a uniform three-dimensional mesh structure (hydrogen bonding).This kind of 3 d mesh structure (hydrogen bonding) has the external force, shear force, electric field force, etc.) will be damaged, medium is thinning, viscosity decreased, the external force, the three dimensional structure (hydrogen bonding) will heal itself, viscosity rise, namely the thixotropy is reversible.

Gas phase silica in gel battery mainly uses its excellent thickening thixotropic performance. Colloid electrolyte is formed by gas phase silicon dioxide and a certain concentration of sulphuric acid solution according to the certain proportion configuration. The electrolyte of sulfuric acid and water is "stored" in the silicon gel network. It is a "soft solid gel". When it is stable, it shows solid shape. When the battery is charging, as the concentration of sulfuric acid increases in the electrolyte of "thickening" accompanied by crack produces, and the positive charge "electrolysis of water" in the late reaction of oxygen through the numerous fissures is absorbed by the cathode, and further back into the water, so as to realize seal battery cycle reaction. Sulfuric acid in the electrolyte concentration at the time of discharge reduces "thin", and becomes a perfusion before the battery state of thin plastic. As a result, the colloidal battery has the function of "maintenance".

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