Analysis of battery electrolytes and N-methyl-2-pyrrolidone (NMP) via headspace GC-FID

Monday, April 22, 2024

The increasing demand for electronic portable devices and electronic vehicles makes production and performance monitoring of batteries a major task these days. Lithium-ion battery electrodes are created using dispersions, so-called slurry compositions, which consist of the active material for the electrode and other ingredients such as binders and conductive agents. The solvent widely used for basic slurry compositions is N-methyl-2-pyrrolidone (NMP), as this dissolves polyvinylidene fluoride (PVDF), the most frequently utilized binder in the cathode slurry formulation.

The lithium-ion battery itself does not contain NMP as it is recovered from the exhaust gases and re-used. Consequently, the degree of purity of NMP and the absence of it in the battery electrolyte is important to produce a high-performance battery. Additionally, knowing the general composition of the electrolyte is essential to improve ion transport and monitor the related battery life. The analysis of battery electrolytes regarding their composition and NMP content as well as purity testing of 2-methyl-2-pyrrolidone via headspace GC-FID are presented in this application note. Download now to learn more.

Download Now

    If you are already registered or have requested a quote before, and your contact information will be filled out for you.

  • Please enter your first and last name.

  • Please enter the name of the company or institution you work at.

  • Please enter your mailing address.

  • Please enter the e-mail address you would like to be contacted at.

  • By submitting this form, you consent to Labcompare storing your email address and contact information and transmitting your contact information to the content sponsor. You may request to be removed at any time.