Sodium battery VS lithium battery, can it be replaced?
Since last year, listed companies have continued to enter projects related to sodium batteries, and the industrialization process of sodium-ion batteries has also achieved certain…
Introduction to the process of lithium battery recycling
The recycling process of used lithium-ion batteries mainly includes pretreatment, secondary treatment and advanced treatment. Since there is still some electricity left in the used batteries, the pretreatment process includes deep discharge, crushing, and physical sorting; The purpose of the secondary treatment is to realize the complete separation of the positive and negative active materials…
Brief Introduction of 4680 Cylindrical Cell(Ⅰ)
1. Introduction The 4680 cylindrical cell is a new generation of cylindrical cell with 46mm diameter and 80mm height launched by Tesla. For batteries, when the energy density increases, the power density will decrease. The diameter of 46mm is the best choice for cylindrical cells that take into account both high energy density and high power…
Brief Introduction of 4680 Cylindrical Cell (Ⅱ)
3. Dry electrode technology: This technology can be used on both positive and negative electrode. Traditional wet process: The material needs to be placed in a solution, then dried and pressed into a film: use a solvent with a binder material, of which NMP is one of the common solvents. After mixing the solvent with…
Introduction of Mobile Phone Battery Packing
Generally speaking, there are two major production steps in battery manufacture. 1.Battery cell: the battery cell is composed of positive electrode material, negative electrode material, electrolyte, separator, additives…… and is packaged together by aluminum-plastic film or shell. It is just a combination of various materials and only have current and voltage, cannot be used directly. 2.Pack:…
Brief Introduction of 4680 Cylindrical Cell(Ⅲ)
5. Cathode Different electrodes are used in different products. LFP 4680 is used in low-range vehicles and energy storage batteries, focusing on providing more cycle times. Nickel-manganese 4680 batteries are used in medium-range vehicles and household batteries. High-nickel 4680 batteries are used in the Cybertruck and Semi. Tesla’s cathode material focuses on high-nickel and…
In-depth introduction to sodium-ion batteries(Ⅰ)
1.Introduction to Basic Information Sodium-ion batteries are rechargeable batteries that primarily rely on the movement of sodium ions (Na+) between the positive and negative electrodes to function, similar to the working principle of lithium-ion batteries. During the charge and discharge process, Na+ shuttles between the two electrodes: during charging, Na+ is deintercalated from the positive electrode…
In-depth introduction to sodium-ion batteries(Ⅱ)
3.Sodium Ion Battery Cathode Materials Sodium ion battery cathode materials can be classified based on their crystal structures into oxide-based materials (layered and tunnel structures), Prussian blue analogs, phosphate fluorides, phosphates, sulfates, and others. Among them, layered oxides, polyanion compounds, and Prussian blue analogs are the three mainstream cathode routes. Currently, each of these three…
Overview of lithium battery material
A lithium-ion battery is a common type of rechargeable battery widely used in mobile devices, electric vehicles, and energy storage systems. It comprises various battery materials, each with specific functions. Here’s an overview of the main battery materials involved: Anode Materials: Graphite: Graphite is the most common anode material, capable of intercalating lithium ions during…
A Brief Introduction to Solid-State Electrolyte
With the evolution of solid-state lithium batteries from concept to actual products, the technology has also gradually matured. However, there is still a long way to go before achieving large-scale commercialization. The key distinction of solid-state batteries is the use of solid-state electrolytes, unlike the liquid electrolytes in conventional lithium-ion batteries. Ideally, solid-state electrolytes need…
Comprehensive Talk About Battery Material
Battery, as indispensable energy storage devices in modern technology and industry, have their material selection and performance directly influencing battery efficiency, cycles, and application scope. This paper aims to delve into the categories, significance, and future development trends of Battery material, offering a comprehensive overview of Battery material. 1.Categories and Significance of Battery material Battery…
Lithium Battery Charging and Discharging Theory and Design of Battery Capacity Calculation Method
1. Introduction to lithium-ion batteries 1.1 State-Of-Charge;SOC The state of charge can be defined as the available energy state of a battery, usually expressed as a percentage. Since the available energy can vary due to charging/discharging current, temperature, and aging phenomena, the definition of state of charge is also divided into two types: Absolute State…
Lithium batteries ‘sailing ahead’， sodium batteries usher in an explosive point
Just as lithium batteries were revolutionary in their time, sodium batteries are equally groundbreaking now. Since CATL (Contemporary Amperex Technology Co. Limited) unveiled sodium batteries, the industry has witnessed an unstoppable wave of investments in this technology. On one hand, new players in the sodium battery field have emerged, backed by massive financing. On the…