What do you mean by the energy density of lithium batteries?
source：Geerady       date： 2021-07-14
With the development of society, people everywhere in the daily what are lithium battery products, more and more inseparable from the lithium battery, battery manufacturers now need to conquer the biggest hurdle is the battery life, the life length, but the length of the range mainly depends on the power and energy consumption of the electronic equipment, generally speaking, if we do not consider the total energy consumption, when the battery and quality under the condition of the same size, the length of life size to determine the specific energy by batteries. So what is the energy density of a lithium battery? Let's take a look at...
What does lithium battery energy density mean
To put it more easily, the energy density of lithium battery is the electromagnetic energy that can be stored by the battery under a certain volume or mass condition. The energy density of lithium battery is the average value of the rechargeable battery mass stored by the electromagnetic energy, and the unit is: watt /kg (Wh /kg).
The energy density of a lithium-ion battery is the average volume stored in the electromagnetic energy, in watts per liter (Wh /L). To put it simply, the higher the energy density of a battery, the larger the battery is stored
Cell energy density
The rechargeable battery structure design of electronic equipment is a battery group composed of several rechargeable batteries, and each rechargeable battery touch group is composed of several lithium-ion batteries, which is the basic module of lithium-ion battery system software.
System software energy density
In contrast to energy, system software is the energy stored in the mass or volume of an entire battery system software. Generally speaking, the rechargeable battery specific energy of a battery vehicle is understood as the specific energy of the rechargeable battery system software. Rechargeable battery system software is composed of many independently produced lithium-ion batteries. However, considering the quality and space environment of rechargeable batteries and various intelligent management systems connected with raw materials, a whole rechargeable battery system software can not reach the single lithium-ion system software widely.
What are the limitations on the energy density of battery system software? Energy density of battery system = energy density of cell × group efficiency
As mentioned above, the rechargeable battery system software is composed of many lithium ion batteries, which are influenced by the presence of lithium ions and the connection of raw materials.
From lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride rechargeable batteries, nickel-cadmium batteries, nickel-metal hydride rechargeable batteries, lithium-ion batteries, automotive power lithium-ion batteries and electric energy in comparison with the continuous increase. Lithium-ion battery consists of several parts of a lithium-ion battery, a protective film and an electrolyte. In the plate that the lithium-ion battery is dragged and placed, the lithium-ion battery is dragged from the cathode material of the battery when the battery is charged. Based on the electrolyte of the lithium-ion battery, electronic components are injected into the cathode material, and the lithium-ion battery is dragged from the negative electrode to the positive electrode when it is charged. In other words, the whole process of lithium-ion battery charging is essentially the whole process of lithium-ion battery migration in the cathode material. Therefore, the basic theoretical volume of the cathode material of positive battery determines the basic theoretical specific energy of lithium ion.