DEMS for In-situ Gas Analysis during Battery Charge/Discharge

Mass spectrometers are a powerful instrument for identifying the composition of the substance and can be used for gas analysis, with advantages ranging from the smallest hydrogen molecules to large molecular organic vapours of several hundred molecules, which can be analysed, as an all-power gas analyser, with advantages such as low detection limits, high sensitivity, wide linear ranges and low consumption of the required gases, and with advantages such as isotope marking, which can be widely applied to all types of battery gases.

In situ electrochemical mass spectra is also known as online electrochemical mass spectrometry, differential electrochemical mass spectrometry, DEMS, OLEMS, etc., which can be used for online analysis of the production of gases during the charging process for various types of energy storage devices, such as lithium ion batteries, and for the type of batteries consumed by gases, such as air batteries, which can be used for quantitative analysis of battery gas consumption, allowing real-time analysis of the generation or consumption of gases at different stages of battery operation, i.e., the distribution of gas generation or consumption during battery discharge in response to voltage, which is one of the important analytical tools for the study of battery electrochemical response mechanisms, rapid screening of electrodes, and evaluation of electrolyte breakdown.

Specific applications are as follows:

1. Lithium-rich orthodox material first charged O.₂and CO2Diagnosis

2. First charge of lithium cobalt-acid at high pressure O₂and CO₂Diagnosis

3. Three-dollar orthodox material first charge O₂and CO₂Diagnosis

4. High nickel orthodox material first charged O.₂and CO₂Diagnosis

5. First charge O for sodium ion cell amplifiers₂and CO₂Diagnosis

6. Negative polar material first charge O₂and CO₂Diagnosis

7. Battery electrolyte decomposition gas study

8. Aqueous zinc ion batteries during discharge O₂And H.₂Diagnosis

9. Li-O₂Battery discharge process O₂Consumption, charge process O₂Diagnosis

10. Li-CO₂Battery discharge process CO₂Consumption, charge process CO₂Diagnosis

 

Application cases:

1. Lithium-rich orthodox material first charged O₂Diagnosis

 

Nat. Comm. 2022, 13,1123

2. First charge of lithium cobalt-acid at high pressure O₂Diagnosis

 

Angew. Chem. 2021, 133, 27308 – 27318

3. High nickel orthodox material first charged O₂and CO₂Parsing QuantificationMeasure

 

Small 2021, 2104282

4. Sodium ion batteries are active first charge O₂Diagnosis

Nat. Comm. (2021) 12:5267

 

5. Gas extraction detection during discharge of negative polar materials

 

Energy Environ. Sci., 2019, 12, 2991–3000

6. Detection of the electrolyte decomposition of lithium ion cells

 

Journal of The Electrochemical Society, 162 (10) A1984-A1989 (2015)

7. Zinc ion batteries

 

Joule 2022, 6, 399-417

8.Li-O₂Battery charge process O₂Test

 

ACS Appl. Mater. Interfaces, 2021,13,4062-4071 

9.Li-CO₂CO during battery charge₂Gas detection

Small 2021, 17, 2100642