In this study, a simulation of a high temperature accident has been performed for lithium-ion batteries cooled with the direct immersion cooling systems using single-phase dielectric liquids to define their contribution to HF formation.
The accurate determination of water content within lithium-ion batteries is of key importance, an excess of water can cause degradation of the electrolyte and leads to the formation of certain by products which significantly lower the lifespan and capacity of the battery, the most prominent form of by-product is hydrofluoric acid.
In the battery production process, in order to guarantee high quality and safety, the water content should be measured not only in the final electrolyte, but also in raw materials. Different electrolytes and different raw materials were tested for water content using Hydranal NEXTGEN Coulomat A-FA and C-FA.
Along with water, hydrofluoric acid (HF) – one of the detrimental degradation products of LiPF6– can be tested using an acid-base titration with sodium hydroxide as the titrant. More about Li-ion Batteries
When refrigeration liquids based on two perfluoropolyethers and hydrofluoroether were applied, the fluoride concentration in the washing system was 259 mmol/l, 173 mmol/l and 145 mmol/l, respectively. This work also proposed the reaction mechanisms of the refrigeration liquid´s decomposition during a fire.
Lithium-ion batteries (LiBs) are now the most employed power source for portable electronic devices and fully electric and hybrid engines [ 1, 2, 3, 4, 5, 6] since they can provide high energy and power per unit of the battery weight, as they are lighter and smaller than other rechargeable batteries [ 7, 8 ].
In this study, a simulation of a high temperature accident has been performed for lithium-ion batteries cooled with the direct immersion cooling systems using single-phase dielectric liquids to...
The water content of several materials used in lithium ion batteries can be determined reliably and precisely by coulometric SampleKarl-Fischer titration. In this Application Bulletin the …
The accurate determination of water content within lithium-ion batteries is of key importance, an excess of water can cause degradation of the electrolyte and leads to the formation of certain by products which significantly lower the …
In this study, a simulation of a high temperature accident has been performed for lithium-ion batteries cooled with the direct immersion cooling systems using single-phase dielectric liquids …
In the battery production process, in order to guarantee high quality and safety, the water content should be measured not only in the final electrolyte, but also in raw materials. Different …
To avoid overheating of the batteries, which could lead to a fire, Lithium-ion batteries are provided with a thermal management system using refrigeration liquids. Since some of the commercial …
The accurate determination of water content within lithium-ion batteries is of key importance, an excess of water can cause degradation of the electrolyte and leads to the formation of certain …
Keywords: Lithium-ion batteries, Thermal accident, Refrigeration liquids, Hydrofluoric acid 1. Introduction Lithium-ion batteries (LiBs) are now the most employed power source for portable …
In this application note, we provide an easy method to determine the hydrofluoric acid (HF) content in lithium-ion battery electrolytes by simple acid...
This application note provides an easy method to determine the hydrofluoric acid (HF) content in a lithium-ion battery electrolyte through acid-base titration with potentiometric indication. By …
Water – The Most Important Quality Control Parameter for Battery Manufacturers. Karl Fischer titration has proven to be the method of choice. The gas-phase extraction technique with …
To avoid overheating of the batteries, which could lead to a fire, Lithium-ion batteries are provided with a thermal management system using refrigeration liquids. Since some of the commercial …
To avoid overheating of the batteries, which could lead to a fire, Lithium-ion batteries are provided with a thermal management system using refrigeration liquids. Since …
The free acid content in lithium-ion battery electrolyte solu-tion is calculated according to the following formula: ρ HF¼ It F M 103 m s Here, ρ HF is the content of free acid in lithium-ion ...
This application note provides an easy method to determine the hydrofluoric acid (HF) content in a lithium-ion battery electrolyte through acid-base titration with potentiometric indication. By …
Lithium-ion batteries must be completely free of water (concentration of H2O < 20 mg/kg), because water reacts with the conducting salt, e.g., LiPF6, to form hydrofluoric acid.The water …
Lithium-ion batteries must be completely free of water (concentration of H 2 O < 20 mg/kg), because water reacts with the conducting salt, e.g., LiPF 6, to form hydrofluoric acid. The …
A new quantitative analysis method was proposed, aiming at resolving the difficulty encountered in accurately determining the trace content of a free acid in lithium-ion battery electrolytes in …
Download the free white paper about the determination of detrimental water and hydrofluoric acid by Karl Fischer titration in lithium-ion battery components: electrolyte, cathode, and anode.
To avoid overheating of the batteries, which could lead to a fire, Lithium-ion batteries are provided with a thermal management system using refrigeration liquids. Since some of the commercial dielectric liquids used as …
In this study, a simulation of a high temperature accident has been performed for lithium-ion batteries cooled with the direct immersion cooling systems using single-phase …
In order to ensure high quality, the amount of water inside a battery must be as low as possible and each component needs to be tested for water before it is built into the battery housing. …