Table 1 Identified degradation products in the NaBOB–TEP + DTD electrolyte

From: Effect of additives on the high-temperature performance of a sodium bis(oxalato)borate in triethyl phosphate electrolyte in sodium-ion batteries

1H peak

13C peak

Compound

Correlating nuclei in HMBC

1.13

68.79

Diethyl sulfate

Proton on carbon with carbon

4.11

13.23

Diethyl sulfate

Proton on carbon with carbon

1.27, 0.95

13.36

Diethyl sulfate

Carbon with proton on carbon (13C satellite peak)

4.24, 3.86

68.77

Diethyl sulfate

Carbon with proton on carbon (13C satellite peak)

4.20

63.83

Ethyl ethylene phosphate

Proton on carbon with other carbon

4.30

69.32

Unidentified product 1

 

4.39

70.80

Unidentified product 2

 
  1. Letters in green are referring to chemically different carbon atoms, indicated in Scheme 1.
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