myecpro-laptop battery

Outdoor world of ice and snow, indoor heated, laptop battery  , the early morning of February 16, in Jinzhou New Century Quartz Glass Co., Ltd. Thermal processing workshops, dozens of workers after the Chinese New Year is a flood of orders for foreign markets nervous busy.

Director of new technology research and development company a few days ago Assistant General Manager Zhang Haixia won the 2008 National Petroleum and Chemical Industry title of model workers, she carefully read several of the machines in operation, while introduction said: “We rely on ‘an annual output of 1,000 tons of low-cost solar grade polysilicon production line ‘project ThinkPad T43 , 40Y6797 , 40Y6799 , now received orders for quartz products and polysilicon have been at the top of the second half of this year, the workers are working overtime production. the face of financial crisis, we are actively adjust the industrial structure, improve new products, pay close attention to implementation of projects in construction to ensure that further improve the industrial chain. ”

Scientific and technological innovation as a model enterprise in our province, Jinzhou City, the focus of photovoltaic industry and production of raw materials for solar cell business, the New Century Quartz Glass Co., Ltd. are often used to describe “promote industrial optimization and upgrading,” a typical case. Polysilicon production line are the company’s independent research and development projects ThinkPad R51 , ThinkPad T40 , using silicon and other physical purification process, to solve our country’s production output of solar polysilicon materials low power consumption and cost of higher series of problems, products are exported to Korea, Japan and Europe the United States and the region.

Mainly because of product market to rely on international markets, global financial crisis brought about by “cold” once the impact of the new century, the company’s normal sales. Zhang Haixia said: “The financial crisis is a short-term energy crisis and climate crisis are long-term, the development of new energy will become the world’s economic recession of the new engine, key enterprises as the photovoltaic industry, it should be firmly and unswervingly Development Goals. Financial crisis after the new energy will become a new growth pole, as the saying goes in the storm after the sun. ”

It is also on the basis of this sense, the new century has not negative “hibernation”, but “Winter” the positive attitude and increase the market competitive product development, the timely set up anti-risk mechanism, Latitude D620 , Latitude D820 , XPS M140 and further improve the modern enterprise management system, thereby ensuring the enterprises in the winter can make a concerted effort to overcome the difficulties and gain. Since July 2008 onwards, the company’s first annual production capacity of 50 tons of the production line through the debugger and put into operation, Product by Suntech, Beijing Harbaugh Trade and Industry and Japan’s Toyota and other companies pulling single crystal detection rate of single crystal silicon resistors specified eligibility criteria, the current European market the company’s products are being used to carry out a deeper experimental production.

“Photovoltaic industry as high-tech industry and new energy industries, a huge market space for development, the future is the Inspiron 6400 battery switch stations petrol filling stations.” Said Zhang Haixia.

In the mobile use of notebook battery life decisions, as the notebook with the lithium-ion batteries, in a non-normal temperatures, too high or too low temperature will bring a variety of questions, then the temperature is how it affected notebook battery?

1 ,0-40 ℃ are the most reasonable working environment

Notebook when in use, humidity, static electricity, temperature, etc. have an impact on it, but the lithium-ion batteries the most sensitive to temperature, excessively high or low temperature, the battery will bring negative impact to varying degrees, usually lithium-ion battery for the limits of the ambient temperature -20 ℃ ~ 60 ℃, and 0 ℃ ~ 40 ℃ is the most reasonable working environment, but to exert the potential of laptop battery performance, 20 ℃ or so is the best use of the environment.

Second, -25 ℃ the following will affect the battery life

Although the laptop battery in -20 ℃ permit the use of environment, but this will be the battery charge and discharge performance of a great Under normal circumstances, the lower the ambient temperature, the battery inside the actives activity the lower the electrolyte resistance and viscosity The higher the ion diffusion more difficult, not easy for battery charging and discharging.

For example, when the ambient temperature is below zero, the battery charge-discharge efficiency will be greatly reduced, thus charging speed will be very slow and full of electricity supply after the time and only the original 60%, when the ambient temperature falls below the minimum temperature limit (for example — 25 ℃), the battery electrode reaction rate is very low, even from the electrolyte freezing point, the battery performance may be only 10%, serious impact on battery life.

Three, 60 ℃ or more may be explosive

With the low temperature case, if the laptop battery in high temperature environment, which will affect the battery charge-discharge efficiency, but also for more serious damage to the battery, such as the use of inferior charger or charging time is too long, making the battery larger heat, When the charging temperature exceeds the maximum limit on the temperature, this will destroy the battery’s chemical balance, resulting in performance degradation of battery materials, to reduce battery life.

The same reason, the battery during the discharge time, that is, when we use the notebook, due to internal short-circuit the battery or battery design flaws, if the operating temperature exceeds the maximum limits, battery-powered ability, life receded, the situation will be serious emergence of the explosion, burning and so on.

Lithium-ion battery security features

Lithium-ion dell laptop battery has been very widely used in people’s daily lives, so it should definitely be the safety performance of lithium-ion batteries are the first assessment indicators. For lithium-ion battery safety performance assessment indicators, the international community provides for very strict standards, a qualified Li-ion batteries in the safety performance should meet the following conditions.

(1) Short Circuit: No fire, not explosion

(2) Overcharge: No fire, not explosion

(3) hot box test: no fire, not explosion (150 ℃ thermostat 10min)

(4) needle puncture: No explosion (Ф3mm nail penetration with batteries)

(5) the impact of flat-panel: no fire, not explosion (10kg weights since 1M height batteries)

(6) burning: No explosion (gas flame barbecue batteries)

Lithium-ion latitude d510 battery safety features are how to achieve the?

Lithium-ion batteries in order to ensure safe and reliable use, the experts had a very strict and careful design of the battery safety in order to achieve security assessment battery indicator.

(1) divide 135 ℃ Automatic shutdown protection

Adopting international advanced Celgard2300PE-PP-PE three-tier composite membrane. The battery temperature reached 120 ℃, the composite membrane on both sides of the PE film hole closed, the battery internal resistance increases, the battery internal temperature down, the battery temperature reached 135 ℃, when, PP film hole closed, the battery internal circuit, the battery is no longer warming, to ensure safe and reliable latitude d520 battery.

(2) add to the electric fluid additives

Overcharge the battery, the battery voltage higher than 4.2V under the conditions of electric and electro-hydraulic fluid additives in other polymeric material, the battery internal resistance of mates increased, the formation of large area internal battery circuit, the battery is no longer warming.

(3) the battery cover composite structure

The battery cover the use of explosion-proof structure notch, battery temperature, the battery internal activation generated by the process part of the gas expansion, the battery internal pressure increased, the pressure reaches a certain degree of notch rupture deflated.

(4) a variety of environmental abuse trial

For the misuse of tests, such as external short circuit, overcharge, acupuncture, flat shock, burning and so on, examining the safety performance of the battery. At the same time, the battery temperature shock test and vibration, drops, shocks and other mechanical properties test, inspect the battery in the actual use of environmental performance under the circumstances.

Lithium-ion latitude d600 battery are a new type of green environmental protection battery

“Care for the environment, the protection of the Earth” is our bounden duty of every individual. How the U.S. environmental philosophy reflected in the action then?

As a battery consumers should buy, the use of new green battery; as the battery manufacturers should be the production of new green battery. Only through the concerted efforts of everyone to create, protect our natural beauty and harmony.

New type of battery is the green environmental protection in recent years have been put into use or are being developed for a class of high-performance, non-polluting batteries. Has been substantial use of lithium-ion batteries, nickel metal hydride batteries and are promoting the use of mercury-free alkaline manganese dioxide batteries are being developed, as well as lithium or lithium ion plastic batteries, fuel cells, electrochemical energy storage supercapacitor are new green areas of the dell 312-0068. In addition, the current has been widely applied to the use of solar photovoltaic conversion of solar cells (also known as photovoltaic power generation), also fall into this category.

Lithium-ion battery main components

(1) battery cover

(2) —- cathode active material for lithium cobalt oxide

(3) —- divide a special composite membrane

(4) —- cathode active material for carbon

(5) organic electrolyte

(6) Battery Shell

The advantages of lithium-ion dell laptop battery can

We have always said that the lithium-ion batteries are for the superiority of the traditional nickel-cadmium batteries (Ni / Cd) and nickel-metal hydride battery (Ni / MH) in terms of the. Then, lithium-ion battery good What went wrong?

(1) high voltage

(2) than the energy of large

(3) Long cycle life

(4) low self-discharge rate

(5) No memory effect

(6) non-polluting

The following is a nickel-cadmium, nickel hydrogen, lithium-ion battery performance comparison:

Technical parameters of Ni-Cd Battery Ni-MH inspiron 500m battery Lithium Ion Battery

Operating voltage (V) 1.21.23.6

Weight ratio of energy (Wh / Kg) 5065105-140

Volume ratio of energy (Wh / l) 150200300

Charge-discharge life (times) 5005001000

Self-discharge rate (% / month) 25-3030-356-9

Whether the memory effect has the availability of

Yes No Have non-polluting

(Note: The charging rate of 1C)

Lithium-ion battery Working Principle

Everyone already know that lithium-ion dell inspiron 510m battery cathode materials are lithium cobalt oxide, are carbon negative electrode.

Lithium-ion battery working principle refers to the principle of charging and discharging. When charging batteries, the batteries have a lithium-ion cathode generation, after generation of lithium-ion electrolyte to the anode exercise. As the carbon anode was layered structure, it has a lot of microporous, the arrival of Li-ion on the anode embedded in the porous carbon layer, the embedded lithium-ion more the higher the charge capacity.

Similarly, when the battery discharge (that is, we use the process of the battery), embedded in the carbon anode in lithium-ion layer extrusion, and sports back to cathode. Back to cathode of lithium-ion more higher discharge capacity. What we normally refer to the battery capacity is the discharge capacity.

Is not difficult to see, in the lithium-ion battery charge and discharge process, lithium-ion at the anode from the cathode → Sports → cathode status. If we take the lithium-ion battery Saying for a rocking chair, rocking chair at the two ends of the bipolar battery, and lithium-ion as the best athlete in the running back and forth at the two ends of a rocking chair. Therefore, the experts gave a lithium-ion inspiron 600m battery lovely name rocking chair batteries.

Lithium-ion battery assembly process

Lithium-ion battery technology is very stringent, complex and here only a brief one of several major processes.

(1) Pulping

Use of specialized solvents and adhesives in powder form with the negative electrode active material is mixed, with high-speed mixing evenly, the paste made of the positive and negative material.

(2) coating

Will be made from pulp evenly coating the surface of the metal foil and drying, respectively, a pole piece made of positive and negative.

(3) assembly

By cathode film - divide - negative film - diaphragm placed the order from top to bottom, the battery made by winding a very core, then injected into the electrolyte, sealing and other process, namely the completion of the battery assembly process, the system into a finished battery.

(4) into

With a dedicated battery charging and discharging equipment for finished battery charge and discharge test, for each battery are tested only selected qualified latitude d500 battery products to be manufactured.