Which is durable for lithium batteries and nickel-metal hydrogen high power batteries?

Advantages: No memory effect, lighter weight.

Disadvantages: high cost, small current, not enough to fill(compared with nickel hydrogen).

The lithium battery has a lithium(non-rechargeable) and a secondary Lithium(rechargeable), and the secondary lithium battery is divided into a Li-ion lithium ion battery and a Li-Polymer lithium polymer battery.

The general digital camera uses secondary Lithium(rechargeable), which is lighter in weight than a nickel-metal hydride battery, and has a volumetric energy density of Gaochu 48. Because of this, the production and sales of lithium ion secondary batteries are gradually surpassing nickel-metal hydride batteries. This type of battery has a small self-discharge and no memory effect. The number of recharges and discharges can reach more than 600 times. In particular, Li-Polymer lithium polymer batteries that have only been developed in recent years, in addition to being smaller in size, are not subject to general battery cylinders or square shapes. Restrictions, And lighter.

Lithium batteries are not resistant to over-filling. If they are inadvertently used, there is a risk of explosion. Therefore, built-in control ICs are required to prevent over-filling, but the cost is also relatively high. Lithium batteries have no uniform specifications, so there will be cases where batteries can not be purchased after the models are discontinued. However, much has been improved so far.

Advantages and disadvantages of nickel-metal hydride batteries

Advantages: low price, high versatility, high current, stable environmental protection.

Disadvantages: Large weight, short battery life.

The design of nickel-metal hydride batteries originated from nickel-cadmium batteries, but there has been great progress in improving the memory effect of nickel-cadmium batteries. Its main change is to replace the cadmium originally used by the negative electrode with a hydrogen storage alloy, so nickel-metal hydride batteries can be said to be typical representatives of material innovation. The pollution caused by nickel-metal hydride batteries will be much smaller than nickel-cadmium batteries containing cadmium. Therefore, nickel-cadmium batteries have gradually been replaced by nickel-metal hydride batteries.

Lithium batteries have no alternative to batteries except for a small number of lithium batteries(NIKONEN-EL1 and 2CR5). This is troublesome for a long time to go abroad or a large number of users. Nickel-metal hydrogen batteries do not have such problems. Digital cameras using nickel-metal hydride batteries can usually be replaced with alkaline batteries.

In recent years, more and more digital cameras have used nickel-metal hydride batteries. Battery manufacturers are also optimistic about this market. High-capacity nickel-metal hydride rechargeable batteries have been introduced one after another, making the nickel-metal hydride battery technology rapid progress, the capacity is also increasing, and the use time is equal to that of lithium batteries. Even chargers are getting better and better. The charging time is greatly reduced.

Difference between lithium battery and Nickel Hydrogen Battery Charging

In the use of batteries by many consumers, the use of batteries is often the same concept. Now lithium batteries are already the mainstream, but the previous use of nickel-metal hydrogen batteries is still applied to lithium batteries. In fact, lithium batteries and nickel-metal hydride batteries are not the same in addition to their products.

Newly purchased lithium batteries: the first three times to use the natural shutdown, and then with the original direct charge on the mobile phone to recharge, and then continue to charge for about 1 hour(2000 mAh or more about 2 hours).

Daily: Fill it up and fill it up for more than 1 hour. Avoid late-night charging(high grid voltage). Batteries can be used with charge and can be used for alarm or shutdown. Note that the battery used to shut down is recharged as soon as possible, otherwise the battery self-discharge and the voltage continue to drop may cause the self-lock protection to fail to charge. Make it a habit: go to work during the day, get home at night, start charging, fill up, or pull the plug before going to bed.

Use: general lithium-ion batteries can be filled, used, and stopped. Cycle life refers to the number of full charge and full charge, and part of the charge and discharge can be understood as a fraction of a lifetime. Key to battery use: The battery is full and can be recharged for 20 minutes-half an hour to reach saturation, but be sure to avoid long recharging after filling. Continued charging for a long period of time after completion will lead to side reactions. The result is a decrease in capacity and a large internal resistance, a shortened capacity, and a shutdown on the phone. Machines with charge chips such as PPC are best used until no power is recharged, mainly considering the problem of electricity display measurement.

After the battery is filled, charging continues to do great damage to the lithium battery. After charging, the battery will continue to produce side reactions. The number of active substances will decrease, the number of waste substances will increase, the capacity will decrease, and the internal resistance will increase. Severe overcharging will directly destroy the battery structure and cause the battery to be scrapped. Nowadays, some chargers also provide charging protection mode, depending on whether the battery's power is full of adjustment charging mode, can effectively protect the battery.

Lithium-ion batteries can be recharged at any time, and the impact on life is limited. For batteries such as PPC, it is recommended to use automatic shutdown to charge to avoid impact. It can be charged at any time and can be stopped at any time. If it is filled with continuous charging, it will have an impact on the battery life.

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