Comparison between nickel-metal hydride battery and lithium battery

The lithium battery and nickel metal hydride batteries mainly lie in the fact that the difference between a lithium battery is suitable for using on mobile phones, but in a digital camera, the current demand is quite large, and the power consumption is much larger than mobile phones, so use Ni-Mh batteries is better.

The advantages and disadvantages of lithium battery

Advantages: no memory effect, lighter in weight.

Disadvantages: high cost, current is small, not too full charge resistance (compared with nickel metal hydride).

Lithium-ion batteries have a li-ion battery (rechargeable) and secondary li-ion battery (rechargeable), secondary lithium electricity divides Li - ion lithium ion batteries and Li - polymer lithium polymer battery。

General digital camera using a secondary li-ion battery (rechargeable), compared with Ni-Mh batteries, light in weight and volume energy density was 48% higher than it. Because of this, production and sales of lithium ion secondary battery are gradually more than Ni-Mh batteries. The battery discharge little self, and no memory effect, charge and discharge frequency can reach more than 600 times, especially in recent years was developed by the Li - Polymer lithium polymer battery, in addition to a smaller, but also general battery cylinder or square shape without limit, the weight is lighter.

Lithium battery for not too full charge, if careless use of the will is in danger of explosion, therefore need built-in control IC, prevent too full charge, but the cost is also relatively improve many. Lithium batteries because the specification is not unified, so will buy battery case after organic kind of production. But it has improved a lot.

The advantages and disadvantages of Ni-Mh batteries

Advantages: low prices, strong commonality, large current, environmental protection and stability.

Disadvantages: large weight, battery life is shorter.

Nickel metal hydride battery design stems from a nickel cadmium battery, but on improving nickel cadmium battery memory effect, have great progress. The main change in use of cadmium in hydrogen storage alloy replaces the original negative, so the Ni-Mh batteries can be said to be the typical representative of material innovation. And pollution caused by Ni-Mh batteries, smaller than containing cadmium nickel cadmium battery will be many, therefore, the nickel cadmium battery has been gradually replaced by the Ni-Mh batteries.

Lithium battery except minority has a lithium-ion battery can be used (NIKONEN EL1 and 2 cr5) most of them are no alternative battery, this to want to go abroad for a long time, or a large number of users is very troublesome, nickel metal hydride batteries had no such problems, using digital cameras of Ni-Mh batteries can often use alkaline battery replacement.

In recent years, increasing use Ni-Mh batteries, digital camera battery manufacturers also bullish on the market, with high capacity of nickel metal hydride rechargeable batteries, make Ni-Mh battery technology by leaps and bounds, the capacity is becoming more and more big, use the same time with lithium battery, the charger is becoming more and more advanced, charging time shortened significantly

Many consumers in the process of battery, tend to have the concept of the use of the battery is the same, the lithium battery is now mainstream, but the previous way of Ni-Mh battery is still used in lithium batteries, but lithium batteries with Ni-Mh batteries in addition to the product is not the same, use is not the same.

New lithium-ion batteries: the head three starts with to natural shutdown, combined with original fill continuously in cellphone charge to the full, and then continue to charge about 1 hour (more than 2000 mah about 2 hours).

Daily: can, with subsequent filling more than 1 hour. Avoid late charge (grid voltage on the high side).Can use increases with the increasing charge batteries, available to the alarm or shutdown. Pay attention to use off the battery charging in time as far as possible, otherwise the battery self-discharge, voltage continues to fall may cause self-locking protection cannot charge. Want to get into the habit of: to work during the day, night came home, start charging, or leave after, unplug the power before you go to sleep.

Use: general lithium battery with charger and increases with the increasing use, stop. Cycle life refers to the total charge total number, part of the charge and discharge can be understood as a fraction of a second life. Battery: the battery, can add charging 20 minutes - half an hour to reach saturation, but must avoid long time after charging. Continue for a long time after the expiration of the charging lead to adverse events, the result is a decline in capacity and internal resistance, capacity to shorten, the phone is power off. Charge on the chip machine such as PPC, best no electricity has been used to refill, mainly considering power according to measurement problems.

After the battery is full of continue to charge the lithium battery damage is very large. To continue after the expiration of the charging, inside the battery will produce side effects, active substances, waste material, capacity, internal resistance increases, serious charge directly destroy cell structure, leading to dead batteries. Now some charger also provides protection mode, will adjust according to the power of the battery is full of charging mode, can effectively protect the batteries.

Lithium ion battery charging at any time, the impact on the life is limited, with PPC and other coulometer batteries, suggest use automatic shutdown after charging, lest affect. Rechargeable, at any time can stop at any time, if full of continue to recharge, affect the service life of battery.

Technical aspect of things is not much said, it's very annoying, for consumers, know to use on the differences between them, there are two kinds of lithium batteries, one is a strong light flashlight and a notebook with lithium ion batteries, one is our mobile phone lithium polymer batteries, lithium ion battery is in the form of was larger than 5 batteries, lithium polymer battery can be molded into various shapes, can also be made of very thin, most of the square. Lithium battery memory effect of the basic can be neglected, also is in charge, do not need to wait until cell with only one of the power to charge. That is to say, the lithium battery with good don't tube it casually. The lithium battery voltage is usually between 3.6 V to 3.6 V

Ni-Mh battery is our common 5 batteries and batteries, nickel metal hydride battery voltage is 1.2 V, nickel metal hydride battery memory effect than ever in the case of the nickel cadmium battery is small, but is larger than the lithium battery, so try to run the battery out to refill the battery is better, in the torch light dark can take charge, charge 30 times for rechargeable battery for a discharge, refresh, remove battery memory effect.

Lithium batteries for use on basic it is exclusive specifications, the cost is slightly more expensive than Ni-Mh this general specification, and once a phone discontinued for a period of time, form a complete set of battery is not available, the old battery scrap we have to change a mobile phone.

Ni-Mh batteries is general specification, as long as support AAAAA specifications of electric equipment, can be used more widely application, of course, the lithium battery in more and more local substitute for nickel metal hydride batteries, nickel-metal hydride batteries in the next 30 years will gradually withdraw from the market is inevitable.

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