Qidi Chemical
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Application Of Triphenyl Phosphite Tppi In The Field Of New Energy The Possibility Of Lithium Battery Electrolyte Additives
Today, there is a workshop produced by Qidi Chemical to explore the use of triethyl phosphite (TPPi) in the field of new energy: the possibility of electrolyte additives in lithium batteries.
Lithium batteries, today's new energy leaders, are the core of portable electronics, electric vehicles and energy storage systems. The quality of its performance is related to the quality of the electrolyte. The electrolyte is a medium for lithium ion transmission, and its properties are related to the charging and discharging efficiency, life and safety of lithium batteries.
Triethyl phosphite has unique chemical properties. The phosphorus and oxygen atoms in its molecules give their special electron cloud structure, which may play a key role in the electrolyte of lithium batteries. First, it may form an SEI film. SEI film, the solid-liquid interface film generated by the reaction of the electrolyte on the surface of the negative electrode when the lithium battery is charged and discharged. High-quality SEI film has ion conductivity, resists electron conduction, and maintains the stability of the electrode structure. The phosphorus and oxygen atoms of triethyl phosphite may help form a dense and stable SEI film, reduce the side reaction between the negative electrode and the electrolyte, and improve the lithium cycle life.
Second, or change the conductivity of the electrolyte. The conductivity is the ability of the electrolyte to transfer ions. The addition of triethyl phosphite may change the interaction between electrolyte molecules and adjust the migration rate of ions. Its special structure may provide an ion transport channel to increase the conductivity of the electrolyte, thereby improving the performance of the lithium charge and discharge rate, so that the battery can charge and discharge a large amount of electricity in a short time.
Third, it is related to thermal stability. Lithium batteries generate heat during operation, and high temperature affects performance and safety. Triethyl phosphite has hot topic stability, or maintains the stability of the electrolyte structure at high temperatures, reducing the possibility of decomposition. It may cooperate with other components in the electrolyte to form a thermally stable system, expanding the operating temperature range of lithium batteries, and increasing its applicability in different environments.
However, there are also challenges in using triethyl phosphite as an additive in the electrolyte of lithium batteries. First, it is necessary to study its compatibility with other components in the electrolyte. Different solvents, lithium salts and triethyl phosphite interact differently, or generate precipitation, gas separation, etc., which damages the performance of the electrolyte. Second, determine the optimum amount of addition. Small amounts are difficult to be effective, and large amounts may change the physicochemical properties of the electrolyte, resulting in negative effects.
Qidi Chemical Workshop should further study the application of triethyl phosphite in the electrolyte of lithium battery, solve its mechanism, solve the problem of compatibility and addition, and hope to add bricks to the development of new energy lithium power, promote its performance improvement, and push forward the new energy field.
Lithium batteries, today's new energy leaders, are the core of portable electronics, electric vehicles and energy storage systems. The quality of its performance is related to the quality of the electrolyte. The electrolyte is a medium for lithium ion transmission, and its properties are related to the charging and discharging efficiency, life and safety of lithium batteries.
Triethyl phosphite has unique chemical properties. The phosphorus and oxygen atoms in its molecules give their special electron cloud structure, which may play a key role in the electrolyte of lithium batteries. First, it may form an SEI film. SEI film, the solid-liquid interface film generated by the reaction of the electrolyte on the surface of the negative electrode when the lithium battery is charged and discharged. High-quality SEI film has ion conductivity, resists electron conduction, and maintains the stability of the electrode structure. The phosphorus and oxygen atoms of triethyl phosphite may help form a dense and stable SEI film, reduce the side reaction between the negative electrode and the electrolyte, and improve the lithium cycle life.
Second, or change the conductivity of the electrolyte. The conductivity is the ability of the electrolyte to transfer ions. The addition of triethyl phosphite may change the interaction between electrolyte molecules and adjust the migration rate of ions. Its special structure may provide an ion transport channel to increase the conductivity of the electrolyte, thereby improving the performance of the lithium charge and discharge rate, so that the battery can charge and discharge a large amount of electricity in a short time.
Third, it is related to thermal stability. Lithium batteries generate heat during operation, and high temperature affects performance and safety. Triethyl phosphite has hot topic stability, or maintains the stability of the electrolyte structure at high temperatures, reducing the possibility of decomposition. It may cooperate with other components in the electrolyte to form a thermally stable system, expanding the operating temperature range of lithium batteries, and increasing its applicability in different environments.
However, there are also challenges in using triethyl phosphite as an additive in the electrolyte of lithium batteries. First, it is necessary to study its compatibility with other components in the electrolyte. Different solvents, lithium salts and triethyl phosphite interact differently, or generate precipitation, gas separation, etc., which damages the performance of the electrolyte. Second, determine the optimum amount of addition. Small amounts are difficult to be effective, and large amounts may change the physicochemical properties of the electrolyte, resulting in negative effects.
Qidi Chemical Workshop should further study the application of triethyl phosphite in the electrolyte of lithium battery, solve its mechanism, solve the problem of compatibility and addition, and hope to add bricks to the development of new energy lithium power, promote its performance improvement, and push forward the new energy field.
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