Digital battery

In response to the most powerful features of the 3C products, battery technology must also constantly develop initiatives to provide this generation of power more hungry, more eager for 3C products. The four most common types of rechargeable batteries - nickel-cadmium, nickel hydrogen, lithium ion and lithium-polymer at the end what is the difference? What are the advantages and disadvantages of each? Xiao Jiang in this year trying to find on the network to analyze the data you send.

 

Nickel-cadmium batteries (NiCd)

 

Is the oldest of a rechargeable Laptop battery technology, earlier in 1899, was invented out. Nickel-cadmium batteries can withstand a short-term benefit is that many releases, and the process of charging the reaction is endothermic - the latter feature can be quickly charged or not cause too much damage to the battery. Nickel battery voltage is 1.2V cadmium, than ordinary alkaline batteries 1.5V slightly less marked, but because the process of voltage alkaline battery discharge will continue to fall at a time when no power n ‘ is typically only 1V, but the nickel-cadmium batteries will have been to provide a stable 1.2V voltage without electricity until the date, so the majority of electronic products using alkaline batteries can be used in nickel cadmium batteries, no problem.

 

Better known shortcomings of nickel-cadmium batteries is the so-called “memory effect”, ie when the battery is discharged there is still no electricity, no longer charge the battery “remember” this position after the electricity used in such a long time left, the battery occur, and do not like the answer to electricity (transient voltage drop). Therefore, nickel-cadmium rechargeable batteries need to go through a period of pre-discharge process will be private only after charging power. Most nickel-cadmium IBM ThinkPad X60 battery charger will discharge the function automatically.

 

Nickel-cadmium batteries, for storing loads of smaller (probably only alkaline batteries 1 / 4), and cadmium are toxic heavy metals, making it less visible. Most applications have been near its nickel-metal hydride battery (NiMH) battery replaced.

 

Nickel-metal hydride batteries (NiMH)

 

Nickel-metal hydride batteries and nickel-cadmium batteries are nearly the same technology, but will be replaced by the hydride anode cadmium only. This is the most features and the same nickel-cadmium batteries, but electricity build higher memory effect is somewhat less obvious (but actually still exists). Ni-MH battery biggest problem is that it has a high self-discharge rate, which is obviously saturated electric charge of the battery, do not book a month, the power to be out May 30 percent less spectrum.

 

The use of 5 (AA) and 7 (AAA) applications-size Dell Latitude D410 battery, nickel-metal hydride rechargeable batteries are currently the mainstream, but has a greater capacity to feed demand, or need to make hours of volume, it is required by lithium-ion batteries by …

 

Li-ion battery (Li-ion)

 

Lithium-ion batteries battery is almost fantastic, has a large capacity, small size, light weight, no memory effect, the tension is high, and self-discharge is small, therefore not surprising that the majority see the modern 3C products were obtained using lithium-ion (or lithium polymer) battery has.

 

But the seemingly perfect lithium-ion battery is always a risk - the most obvious point that it has quite a strong tendency to self-explosion, but so much energy packed into a small space, and exploded is very dramatic to wait a. To avoid a dangerous place, lithium batteries should be many safeguards in the hp 417066-001 battery charging and overshoot or overheating, and automatic shutdown. These additional circuits and institutions, so there is no III / IV-size lithium-ion batteries, and why such a high price due laptop battery.

 

Lithium-ion batteries have a characteristic relatively little known interesting is that you have not used it will be the largest building materials capacity of the battery with an oxidation decreased gradually. In general, at room temperature, the lithium-ion batteries to increase the power will decrease by about 20% per year, and over temperature, load survived eating, falling rapidly, has survived. So if you have a notebook cooling relatively poor, so much time at full power at 60 ° C environment lithium battery can lose 40% within three months from the accumulation of power.

 

Here are suggestions for the lithium-to-date:

 

1. Do not use only the electric light rechargeable - lithium do not like being discharged into the finish, so if you often find themselves using the power of the laptop dry, then he changed the helm of the largest battery stars!

2. Do not load to full power over - as I said before, battery chargers and more saturated, the power has fallen even faster, so keep saturation 60 to 80% is the best state. In addition to Panasonic’s pen seems a pity that foreign power, to achieve this is not easy.

3. For each batch of 30 regular and landfill, we have come to use “dry” discharge - Lithium-ion battery itself is not afraid of a short period of time, a small quantity of charge and discharge, but the protection circuit above may be denial of justice at the end now, how much sony VGP-BPS5A battery power there. A major electrical discharge to dry, then charged at full saturation should be able to protect the loop “correction” to return. Many laptops have a software or even when in the BIOS to provide such functionality.

4. Notebook using AC power source, remove the battery down - because the previous building, said the decline in power. Remove the battery down, at least he did not have access to the computer itself, the heat. If the battery has subsequently launched a refrigerator better.

5. The battery when it is closed, leaving about 40% of electricity inside - leaving too many questions will strengthen the capacity reduced, leaving too little may damage the battery. Nansi Hu really ah!

6. To buy the batteries must buy a new - a new battery has full power Oh!

 

Lithium-polymer battery (Li-Pol)

 

Lithium polymer and lithium-ion batteries, as a rule, only part of the polymer electrolyte instead. This makes lithium-polymer batteries can be molded into a variety of forms (for consumers is not a good thing), in line with the demand to be different. Lithium-polymer batteries are also safer than lithium-ion batteries at high temperature, impact, but there is always an overload when the risk of explosion. Other maintenance principles are the same, and lithium-ion battery (therefore prefer to use the mobile phone battery lithium load each day, do not use photo-electric and have dependents).