Pole ear is a raw material for lithium-ion polymer battery products. For example, the mobile phone battery, Bluetooth battery, notebook battery and so on used in our life need to use the pole ear.
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The battery is divided into positive and negative electrodes, and the pole ear is a metal conductor drawn from the positive and negative electrodes of the battery. In popular terms, the ears of the positive and negative poles of the battery are the contact points when charging and discharging. This contact point is not the copper sheet we see on the outside of the battery, but a connection inside the battery. The anode of the battery is divided into three materials, the positive electrode of the battery uses aluminum (Al) material, the negative electrode uses nickel (Ni) material, and the negative electrode also has copper plated nickel (Ni-Cu) material, which are composed of two parts of the film and metal strip.
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The film is the insulating part of the pole ear, its role is to prevent short circuit between the metal strip and the aluminum-plastic film when the battery is packaged, and the packaging is heated (about 140 ° C) and the aluminum-plastic film hot melt seal bonded together to prevent leakage. A pole ear is a metal band sandwiched between two pieces of film. There are three kinds of film used in the market: vinyl, white glue and single layer glue. The commonly used black film is three-layer structure: melanin, melting point 66℃; PE, melting point 105℃; PP, melting point 137℃.
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The finished packaging of the pole ear is divided into disc type (the whole metal strip is wound into a disc after the film is added by the equipment) and plate type (the metal strip is cut into a single piece after the film is added, and then placed in rows with two thin transparent plastic sheets sandwiched in the middle).
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However, the 46800 battery launched by Tesla is a non-electrode ear battery, which is said to be a revolutionary invention, with a 54% increase in mileage and a 56% reduction in cost. So, what is an aural battery?
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Aural battery is actually no motor interface, no Tab battery, it is essentially a lithium-ion battery. Therefore, this is not a new principle battery, its innovation is mainly in the arrangement of lithium-ion batteries and the way to take electricity.
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Although its shape is similar to that of ordinary batteries, it is also a cylinder, but its internal structure is completely different. It takes the positive and negative electrodes and the battery chemical material in between and makes a thin film stacked together, and then rolls it up.
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Earless batteries have four advantages:
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1, charged particles no longer need to wear a very thick battery, as long as it penetrates a thin film distance, its loss is certainly less.
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2, the electrodes at both ends are directly removed, there is no need to make two electrodes to induce electricity, but the two ends of the film have a long whole can be used to induce electricity, without the additional loss brought by the original installation of two electrodes.
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3, electric vehicles need a large battery pack, the battery has a heating problem, the traditional pole battery because the place of electric shock is relatively small, the current will also have a \"traffic jam\" situation, which will lead to uneven heating. The electrodeless battery is the electrical outflow is more average, and the heat is more uniform, so that the overall heat dissipation will be more convenient.
The three-pole ear battery is not a universal term, and may be the name of a special design battery by an individual manufacturer or brand. According to the conventional battery naming method, the capacity of the battery is generally expressed by the milliampere hour (mAh).
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However, literally, \"tripole large battery\" may imply that the battery has the following characteristics:
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1. Large capacity: May refer to the battery capacity is large, that is, has a high charge storage capacity, can provide a longer use time.
2. Tripole lug: This term is less common, but may refer to the design of the battery with three electrodes (anode, cathode, and reference electrode) to provide a more stable and efficient current output in the battery chemical reaction.
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It should be noted that if the \"tripole ear large battery\" you mentioned is a specific brand or model of product, then it is recommended that you find more detailed information in the relevant documentation, instructions or the official website of the product to understand its specific features and performance.
The pole ear is a component in the lithium battery that connects the positive and negative terminals of the battery. Generally two positive and negative ears, but some batteries have three ears. The three-pole ear battery is conducive to reducing internal resistance and reducing battery heat.