Digital battery

Battery frost and key technologies:

 

1. The main raw materials of design calculations, selection and matching

2. Gel batteries special plate design, formulation and manufacturing process

3. Colloidal formulation and preparation, the dispersion SiO2

4. Early loading or filling operation

5. New gel batteries for added power technology

 

1. The main raw materials, design calculations, selection and matching

 

Gel batteries, the need to report the positive and negative electrode capacity, the thickness of the partition size, plastic shell the size of support, including IBM ThinkPad T60 battery capacity and the plastic shell size of single cell the relationship between the parameters corresponding to a series of reasonable arrangement. In general, single-cell battery should be able to guarantee an effective space filling of acid amounted to 12-15 ml / AH to protect the battery in the amount of the effect of the adjustment of acid-containing gel.

 

A common problem is the use of sealed AGM batteries the standard plastic shell to act as a shell plastic gel battery, which is often caused by insufficient capacity or the battery open circuit faults in voltage and other issues. Another problem more common in domestic PE separators such as the use of private partitions instead of gel batteries, or use a sleeve of fiberglass, silk short sleeves instead of polyester gel battery box Dedicated partitions, which are most seriously affected product, life makes life / cost, but not worth the candle.

 

Users demands long battery life expectancy colloid required in the design and equipment selection, when it should be more stringent than the conventional design sealed Dell Latitude D520 battery, seal the pole to the growth and expansion of plate boundaries, etc., required in the structure must be considered and there should be corresponding measures, such as strength and size of pads and linings using a special pole structure, and enough interior space.

 

It is worth noting is how to prevent the assembly process in the break and short circuit group to protect the qualification rate of finished product.

 

2. Colloid plate special battery design, formulation and manufacturing process

 

Private plate gel batteries in particular, positive plate, and plate sealed classic comparison of the battery must be adapted to gel batteries (electrolyte) Special Requirements:

 

A, the requirements of colloid infusion: making the electrolyte in the hp F2024B battery is full all the corners;

B, to eliminate the polarization resistance increases due to the uneven increase in effect, require grid support structure design reasonable, hob, drying process reasonable and practicable;

C, regardless of recycling or floating charge to use, require long life, there is no thermal runaway phenomenon;

D colloidal form a network structure on the plates and separators and opening requirements of the porosity;

E, moreover, the actual conversion time of the battery in question.

 

3. Formulation of colloids and preparation process, SiO2 dispersion

 

A, first of all, is a gel battery needs to know the problems that the sony VGP-BPS2A battery needs to determine colloidal properties.

 

Council of the battery positive and negative active material in the electrolyte, after infiltrating the structure, you can get some inspiration.

 

Contrary to watch active substances of the structure and composition changes in the electrolyte after injection, the active material and electrolyte combination of regional, living matter was crystal - colloids (crystal structure of the glue) , sulfuric acid and water can freely enter the active substance through the diffusion of network structure of the territory, but the plastic changes of crystal structure depends largely on living material (lead dioxide or metal ) and lead sulfate (sulphate) conversion, while the sulfuric acid and water, and generate little to do with the reduction or can not be because the sulfuric acid or water to increase and decrease in moisture or frost. Therefore, life can always keep the stability of the structure. Thus, it can analogy to say that the sulfuric acid and water in the role of colloids: In the additive in the plastic front, followed by injection in the plastic, but should not be the structure of colloidal constructions.

 

Previous studies, often the chemical transformation of silica hydration —- begin to draw on the reversible reaction of water glass to understand the mechanism of the colloidal structure, and it is very easy to stick on the glass water and other resources, and even the two Silica gel hydration is a key step.

 

In fact, if the set colloidal structure of sulfuric acid and water are the structural components, toshiba PA3285U-2BRS battery charge-discharge process in the corresponding chemical reaction caused by sulfuric acid and changes in the composition of water in the original colloidal structure will inevitably lead to fragmentation, collapse and reorganization, the correspondent must gel hydration and shrinkage. It is difficult to say that the battery life to meet the needs of a stable structure. Therefore, this myth should not be allowed to continue.

 

After that, we had an aging test (after festivals worldwide after the battery charge-discharge cycles, the crack formation) and gel batteries to overcharge and over discharge to verify this conclusion, a mainstream (0.2C to 0.3c) conducted on a full charge of battery power (1.5C to 3.0C), or excessive discharge and closing terminal battery voltage to 0V (discharge volume reached 1.2C to 1.5C, and even more). These experiences, we can see (police) for gel batteries warm, but we see no moisture to freeze.

 

B, the gel formulation and preparation, the more critical is the dispersion of silica. Not studied ultra-fine powder or knowledge, it is difficult to understand the dispersion of the dispersion of silica rigorous requirements. The ultra-fine powder technology in the industry of household batteries are not very partial knowledge of point to study the dispersion of silica dispersed in water is almost pitiful papers, research focussed mainly in paints, etc. Hang Dang.

 

C on silica thickening and thixotropy awareness, in particular, recognize that the thickening of the silica and thixotropy are not inalienable, a process of inappropriate preparation could affect the silica thickening and thixotropy. Right filling process of plastic production, the thixotropic gel is very important, but the life of the apple iBook G4 14 inch battery in the finished product, the colloidal thixotropic Zexu eradicated.

 

D, training battery, and the plate pairs of colloidal have different needs, a corresponding change in the colloidal components.

 

4. To start charging or filling operation

 

Many people are beginning to charge or recharge the battery capacity as a simple process to adjust and active substances in the process, prefer to be adjusted according to their understanding of recharge processes. In fact, the process of loading the gel battery is just a hammer 100 to 1000 the training process, each side in the process of loading and unloading steps is mutually reinforcing.

 

Enjoy the cooking equipment plate, the initial charge of battery for a complete charging process must address the following questions:

 

A plate active material fully translated to protect the battery capacity;

B, plate active material of structural adjustment in order to form a relatively homogeneous and colloidal;

C, reaching the original glue and sulfuric acid, water exchange, the formation of uniform colloidal structure, fully utilize and improve colloidal thickening, reduce the thixotropic gel to form a stable colloidal structure;

D set the Dell GD761 battery voltage and capacity, to adjust the consistency of the battery (capacity, resistance, voltage, etc. coherence).

E, charging additional water loss and water temperature control, and so on.

 

5. The new gel batteries add power technology

 

The new gel batteries, the aging treatment are not a new battery, because not yet formed cracks. Therefore, in the charging of fees to certain requirements.

 

Unreasonable electrical process may be more intense mixing effect, undermine the stability of the colloidal structure, hydration, once produced, it undermines the performance of colloidal thickening. After charging, it is easy to create a localized or overall hydration, this is a very serious damage to the gel, and it will significantly reduce the lifespan of the battery.

 

Stockpiles new gel properly shelved is also aging, can form cracks.

 

How the new batteries with gel methods are most rapid economic and environmentally sound treatment in the aging of the battery that is worth seeing.

Battery power supply design is the development of chemicals and the workers of scientific research, technical staff, knowledge and skills.

 

1. Battery Design Basis

 

• The design goals of battery and the basic principles of

 

Cell is the design of instruments and equipment to provide the best use of the performance of work or power outlet. Therefore, the design of the Laptop battery must first be used to meet the electrical requirements and optimize it with the best overall performance, to determine the battery electrode, electrolyte membrane, Shell and other parties parameters, and they are hand are made to specifications and indicators of battery or batteries.  

  

• design of the battery requirements

 

Battery is designed to meet the object (or user equipment) made the request. Therefore, when designing the battery, the first to have a detailed understanding of the items on the performance indicators of the battery conditions and user requirements, generally include the following:

 

• the battery voltage;

• Battery operating current is the normal current and peak current;

• Battery working hours, including time to discharge continues, the use of the term or life cycle;

• Battery work environment, including hours of work in which the Dell Latitude D510 battery status and temperature;

• The maximum size of the battery.

 

Should also be taken into consideration: the source material; battery performance, characteristics of the battery of the determinants of battery technology, economic indicators, environmental issues and other factors.

 

• performance assessment battery of key indicators

 

Battery performance in general, mainly the following aspects to evaluate.

 

(1) The capacity of the battery capacity is defined as a rejection of certain conditions, can be obtained from the battery power, which is currently on full time, generally expressed in Ah or mAh, this which directly affects the maximum operating current of the hp Pavilion dv4 battery and working hours.

 

(2) The discharge characteristics and internal resistance characteristics of battery discharge is granted the discharge of the battery in a system, the fineness of its operating voltage, the voltage level of the platform and the performance mainstream discharge, etc., which indicates that the battery with a capacity load. Battery internal resistance including the ohmic resistance and polarization resistance electrochemical discharge current large, the resistance of the flow characteristics are particularly evident.

 

(3) Operating temperature with electrical work environment and conditions require the use of batteries in a specific temperature range with good performance.

 

(4) The storage performance of the storage sony VGP-BPS5 battery for a while because of certain factors for changes in performance, causing the battery to discharge, leakage of electrolyte, the battery short-circuit and so on.

 

(5) life cycle (secondary battery) life cycle means the system of secondary batteries in accordance with a certain load and discharge its functions reduced to a certain level (for example, the initial capacity of 60% ) when the number of cycles.

 

(6) The internal pressure and resistance performance overload (secondary battery) for Ni-Cd, Ni-MH battery and other sealed type secondary, high current for recharging the battery internal pressure can reach the balance and equilibrium pressure of the high and low resistance of the battery current level of overcharging to measure the performance of performance are all important indicators of good or bad, if the battery internal pressure reaches the equilibrium or balance, the pressure is too high, it will limit the devices battery voltage (such as explosions bullet proof) to open the battery caused by discouragement or neglect fluid, which leads rapidly to the failure of the battery. If the device fails, pressure limiting, there may cause cracking of the tank apple iBook G4 14 inch battery or an explosion.

 

2. Battery design the basic steps

 

Battery design staff in design tasks clearly and fully prepared, you can imagine.

 

User requirements depending on battery design ideas from the battery, there are two: one for electrical equipment and instruments, rated capacity of the power source, and another is just one factor given power supply form developed excellent battery performance specifications for new or special-shaped battery.

 

1 to determine the ability of design steps of the battery

 

• determine the number of combined organ cells Tenor battery voltage of single battery and current density.

• According to user requirements to determine the overall work of the battery voltage, current indicators of operating and other series of selected cells, the light of the series “Volt-Ampere curve “(derived from empirical data or experience) to determine the work voltage of single cell and current density.

• determine the number of batteries in a single cell.

= The number of total voltage single battery voltage / battery

• Calculation of battery capacity

• According to the requirements of course work and working time calculations of charge.

Nominal Capacity * = current operating hours

• determine the design capacity of

Design capacity = capacity * Design factor

A design factor is to ensure the reliability and lifetime of the whole of the battery, the general attitude 1.1-1.2