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Which of the Polymer Lithium Battery and the Ordinary Lithium Battery Lasts Longer?

May. 06, 2020

As a Lithium Battery For Ebike Factory, share with you. Regardless of whether it is evaluated from a technical point of view or from the perspective of price, the battery occupies a very important position.

Nowadays, in the mobile phones currently on the market, the batteries used have basically completed the transition from nickel batteries to lithium batteries. Perhaps it is because the mobile phone battery has just completed a nickel battery to lithium battery revolution, so people's understanding of lithium batteries is not uniform, and incorrect statements and practices are quite popular. Therefore, it is very necessary to know a little bit about the knowledge of lithium batteries and to master the correct use of lithium batteries. 

Samsung 21700 Battery

Samsung 21700 Battery

1. Types of lithium batteries:

There are two types of secondary batteries currently on the market, nickel-metal hydride (Ni-MH) and lithium ion (Li-ion). Lithium-ion batteries have been mass-produced in two types: liquid lithium-ion batteries (LiB) and polymer lithium-ion batteries (LiP). So in many cases, the battery marked with Li-ion must be a lithium ion battery. But it is not necessarily a liquid lithium ion battery, but it may also be a polymer lithium ion battery. Lithium ion batteries are improved products of lithium batteries. Lithium batteries have been around a long time ago, but lithium is a highly active metal (remember its position in the periodic table?). It is not safe to use, and it often burns and bursts during charging. In the future, there was an improved lithium-ion battery, which added ingredients that can inhibit the active lithium element (such as cobalt, manganese, etc.) to make lithium battery truly safe, efficient, and convenient. Basically eliminated. As for how to distinguish them, it can be identified from the logo of the battery, the lithium battery is Li, and the lithium ion battery is Li-ion. Now, the so-called "lithium batteries" used in notebooks and mobile phones are actually lithium-ion batteries. The basic structure of a modern battery includes three elements: positive electrode, negative electrode, and electrolyte. As a type of battery, lithium-ion batteries also have these three elements. Generally, lithium-ion technology uses liquid or inorganic colloidal electrolytes, so a strong shell is required to contain flammable active ingredients, which increases the weight and cost of the battery, and also limits the size and shape flexibility. Generally speaking, the minimum thickness of a liquid lithium ion secondary battery is 6 mm, and it is more difficult to reduce it. The so-called polymer lithium-ion battery is a battery system using polymer materials as at least one or more of the three main structures.

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