What Are The Advantages And Disadvantages Of Li-SOCl2 Battery

Advantages of Li/SOCl2 batteries:

The high specific energy of this material is attributed to its dual nature as both a solvent and a positive active material. Typically, it can reach an impressive 420Wh/Kg, with the potential to even reach 650Wh/Kg during low-rate discharge.

The open circuit voltage of the battery is 3.65V, indicating a very high voltage. During the discharge process, the voltage can be maintained at 3.3V when a current density of 1mA/cm2 is applied. It is noteworthy that the voltage remains stable within 90% of the battery's total capacity range.

One of the remarkable features of this battery is its high specific power. It can withstand a discharge current density of 10mA/cm2 or even higher. This means the battery can deliver high power output per unit of mass or volume. It is a valuable attribute for applications that demand high power density with minimal space and weight requirements. With this battery, you can expect powerful and efficient performance for various applications.

High voltage accuracy is a notable characteristic exhibited by the discharge curve when discharging at medium current density at room temperature. This desirable attribute ensures that the discharge curve remains remarkably flat throughout the process.

The device exhibits good performance in both high and low temperatures. It is designed to operate effectively within a wide temperature range, from -40 to 50 ℃, and it can even withstand extreme temperatures ranging from -50 to 150 ℃. At -40 ℃, it still maintains about 50% of its normal capacity.

Storage performance is commendable, as it can typically withstand damp conditions for a duration of at least five years.

7. Fully sealed design;

At the beginning of the discharge, the battery does not have any internal pressure. However, as the discharge progresses, a certain pressure gradually builds up inside the battery.

Disadvantages of Li/SOCl2 batteries:

Voltage hysteresis is a phenomenon observed when a device has been stored at room temperature for an extended period. Upon discharge with a higher current, the working voltage experiences a sudden and significant drop, which gradually recovers to its normal level.

2. Despite the implementation of safety precautions, the potential for storing in a discharged state remains, which may result in an uncontrolled release of heat and ultimately lead to an explosion during high-temperature discharge.

3, the price is more expensive

Environmental pollution is a concern when it comes to SOCl2. This compound has the tendency to decompose into hydrochloric acid and sulfur dioxide upon contact with water. The resulting chemical reaction releases corrosive substances, making it imperative to have a well-ventilated production site.

Properties of SOCl2 (ThionylChloride):

SOCl2 is a covalent inorganic compound in liquid form that acts as a positive electrode reactant as well as a solvent in the electrolyte solution in batteries. This chemical has a light yellow to red color and a density of 1.638. Its boiling point is at 78.8°C and its melting point is at -105°C. It can mix with other solvents like benzene, chloroform, and carbon tetrachloride. When exposed to water, SOCl2 is decomposed and forms sulfurous acid and hydrochloric acid. Additionally, it can be broken down by heat and creates sulfur dioxide, chlorine, and sulfur monoxide. This chemical is liquid at room temperature. By rearranging the given information, we can arrive at a detailed and informative description of SOCl2.