Lithium battery or nickel-metal hydride battery which is more durable
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2023/10/26 15:27:17
The difference between lithium battery and nickel-metal hydride battery is mainly that lithium battery is more suitable for mobile phone use, but in the digital camera due to the demand for electricity flow is quite large, and the power consumption is much larger than the mobile phone, so the use of nickel-metal hydride battery is better, but so many users will have questions, that is, lithium battery and nickel-metal hydride battery which is more durable?
Battery batteries
The advantages and disadvantages of lithium polymer batteries
Advantages: No memory effect, light weight.
Disadvantages: high cost, low current, not resistant to overcharge (compared with nickel-metal hydride).
Lithium polymer batteries have primary lithium (non-rechargeable) and secondary lithium (rechargeable), and secondary lithium batteries are divided into Li-ion lithium ion batteries and Li-Polymer lithium polymer batteries.
General digital cameras use secondary lithium battery (rechargeable), compared with nickel-metal hydride batteries, lighter weight, volume energy density ratio is 48% higher. Because of this, lithium-ion secondary battery production and sales are gradually exceeding nickel-metal hydride batteries. This battery self-discharge is small, and there is no memory effect, the number of charge and discharge can reach more than 600 times, especially the Li-Polymer lithium polymer battery developed in recent years, in addition to the smaller volume, it is not limited by the general battery cylinder or square shape, and the weight is lighter.
Lithium battery or nickel-metal hydride battery which is more durable
Because the lithium battery is not resistant to overcharging, there is a risk of explosion if it is used carelessly, so the built-in control IC is needed to prevent overcharging, but the cost is also relatively much higher. Because the specifications of lithium batteries are not unified, it will be impossible to buy batteries after the organic production is discontinued. But it has improved a lot.
Second, the advantages and disadvantages of nickel-metal hydride batteries
Advantages: low price, strong versatility, large current, environmental stability.
Cons: Heavy weight, short battery life.
Nickel-metal hydride batteries are designed from nickel-cadmium batteries, but great progress has been made in improving the memory effect of nickel-cadmium batteries. The main change is to replace the cadmium originally used in the negative electrode with a hydrogen storage alloy, so nickel-metal hydride batteries can be said to be a typical representative of material innovation. The pollution caused by nickel-metal hydride batteries will be much smaller than nickel-cadmium batteries containing cadmium, so nickel-cadmium batteries have gradually been replaced by nickel-metal hydride batteries.
Lithium batteries in addition to a few with a lithium battery can be used (NIKONEN-EL1 and 2CR5) most have no alternative to the battery, which is very troublesome for a long time abroad, or a large number of users, nickel-metal hydride batteries do not have such a problem, the use of nickel-metal hydride battery digital cameras can usually use alkaline batteries instead.
In recent years, more and more nickel-metal hydride batteries are used in digital cameras, and battery manufacturers are also optimistic about this market, and have launched high-capacity nickel-metal hydride rechargeable batteries, making nickel-metal hydride battery technology by leaps and bounds, capacity is getting larger and larger, the use time is comparable to lithium batteries, and even the charger is becoming more and more refined, and the charging time is greatly shortened.
Third, the difference between lithium battery and nickel-metal hydride battery charging method
Many consumers in the use of batteries in the process, there are often battery use methods are the same concept, lithium batteries are now the mainstream, but the past nickel-metal hydride battery use is still applied to lithium batteries, in fact, lithium batteries and nickel-metal hydride batteries in addition to the product is not the same, the use of different.
Newly bought lithium battery: the first three times first use to natural shutdown, and then with the original direct charge in the mobile phone to charge to full, and then continue to charge for about 1 hour (2000mah above about 2 hours).
Daily: Full can be, full follow-up charge no more than 1 hour. Avoid charging late at night (the grid voltage is high). The battery can be used on charge and can be used for alarm or shutdown. Note that the battery used for shutdown should be charged as soon as possible, otherwise the self-discharge of the battery and the continued drop in voltage may cause the self-locking protection to fail to charge. To form a habit, go to work during the day, get home at night, start charging, after full or leave, unplug before going to bed.
Usage: General lithium batteries can be charged, used, and stopped. Cycle life refers to the number of full charge and discharge, and partial charge and discharge can be understood as a fraction of a life. The key to battery use: the battery is full, and can be charged for 20 minutes to half an hour to achieve saturation, but be sure to avoid charging for a long time after full. Continuing to charge for a long time after full will lead to side reactions, resulting in a decrease in capacity and greater internal resistance, a reduction in capacity, and a shutdown when you make a phone call. PPC and other machines with power chips, it is best to always use no power and then charge, mainly to consider the problem of power display measurement.
It is very harmful to lithium batteries to continue charging after the battery is full. After full, continue to charge, the battery will produce side reactions, the active substance is reduced, the garbage substance is increased, the capacity is reduced, the internal resistance is increased, and the serious overcharge directly destroys the battery structure, leading to the battery scrap. Now some chargers also provide a charging protection mode, which will adjust the charging mode according to whether the battery is full, which can effectively protect the battery.
Lithium-ion batteries can be charged at any time, the impact on life is limited, for PPC and other batteries with coulometer, it is recommended to use automatic shutdown after charging, so as not to affect. It can be charged at any time and can be stopped at any time, if it is full and continues to charge, it will have an impact on the life of the battery.
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