The difference between primary and secondary batteries

Many consumers are confused about what is the difference between a battery and a secondary battery, from the word can see the obvious difference: "once" with "two", that is to say, a battery can only be used once, the power is finished, the secondary battery is used many times, the power is full and can be used. The common differences are as follows:

1. Structurally, secondary batteries undergo reversible changes in electrode volume and structure during discharge, while primary batteries are much simpler because they do not need to adjust these reversible changes.

2, the mass specific capacity and volume specific capacity of the primary battery are greater than the ordinary rechargeable battery, but the internal resistance is far larger than the secondary battery, so the load capacity is low.

3. The self-discharge of primary battery is far less than that of secondary battery. A battery can only discharge once, for example, alkaline batteries and carbon batteries belong to this category, secondary batteries can be used repeatedly.

4. Secondary battery is more environmentally friendly than primary battery. Once the battery is used, it will be abandoned, and rechargeable batteries can be used repeatedly. The next generation of rechargeable batteries that meet the national standards can usually be used more than 1000 times, that is to say, the waste generated by rechargeable batteries is less than 1/1000 of the primary battery. Whether from the perspective of reducing waste or from the perspective of resource utilization and economy, The advantages of secondary batteries are very obvious.

5, a battery internal resistance far secondary battery, its large current discharge performance is not as good as secondary battery.

6, under the condition of small current and intermittent discharge, the mass capacity of a battery is greater than the ordinary secondary battery, but when the discharge current is greater than 800mAh, the capacity advantage of a battery will be significantly reduced.

The above is the introduction of primary and secondary batteries, for everyone to understand, more disposable batteries to buy, welcome to contact Hongli /HOLITH lithium battery manufacturers.