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What Is A Battery? What Is The Difference Between A Battery And A Rechargeable Battery?
- Jun 27, 2018 -


What is a battery?


A battery is an energy source. When the positive and negative electrode is connected to the electrical appliance, because there is a difference in the potential between the positive and negative poles, the current flows from the positive to the negative, the chemical energy stored in the battery is converted into electricity directly, and a battery must be composed of two different electrochemical active substances, positive and negative poles, and the electromotive force between positive and negative active substances. The difference forms the voltage of the battery. According to the different electrochemical systems, all kinds of battery voltages vary.


What is the difference between a battery and a rechargeable battery?


The electrochemical design of the battery determines whether the battery is rechargeable. According to their electrochemical composition and the structure of the electrode, the reaction between the inner structure of the rechargeable battery is reversible.


In theory, this reversibility is not affected by the number of cycles, and since charge discharge can cause reversible changes in the volume and structure of the electrode, the internal design of the rechargeable battery supports this change. The electrochemical reaction between two electrodes in a given battery environment is irreversible, so it is not possible to recharge a battery, which is dangerous and uneconomical. If you need to reuse it, you should choose a rechargeable battery with a real cycle of about 1000 times, which is also called the two battery.


Another obvious difference is that they have higher specific energy and load capacity, and self discharge rate. The energy density of a battery is much higher than that of a single battery at a time. However, their load capacity is relatively small.


The two battery has relatively high load capacity. Rechargeable battery Li-ion has high energy capacity with the development in recent years.


No matter what kind of electrochemical system the primary battery belongs to, the self discharge rate of all primary batteries is very small.


How does a rechargeable battery achieve its energy conversion?


Each battery has the ability of electrochemical conversion, and the chemical energy stored will be directly converted into electrical energy. In terms of the two battery (also called a rechargeable battery), in the process of discharge, the chemical energy is converted into electrical energy, and the electrical energy is reconverted into chemical energy during the charging process. Such processes are generally charged and discharged more than 500 times according to different electrochemical systems.


N Li-ion is a new type of rechargeable portable battery. Its rated voltage is 3.6 - 3.8V. His discharge voltage will gradually decrease with the depth of discharge.


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