Battery knowledge · Cell components and electrode materials
Polyacrylic acid
A water-based binder with many carboxyl groups that bond strongly to silicon surfaces, used in silicon-rich negative electrodes where CMC/SBR cannot hold the swelling particles together.
- Abbreviation
- PAA
Example
Cell components and electrode materials: an example situation
Electrons travel through additive, foil and tab; ions use electrolyte and separator pathways.
Read Polyacrylic acid alongside Binder in this context. A polymer that holds electrode particles to each other and to the foil — typically PVDF for positive electrodes and CMC with SBR for graphite. It stores no charge, so cell designers use as little as the electrode needs.
Use in Lemonergy
Connect each material with its function.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- DOE Explains… Batteries
U.S. Department of Energy
Topic background · Introductory account of electrodes, electrolyte and conversion between chemical and electrical energy.
- Current and future lithium-ion battery manufacturing
Yangtao Liu, Ruihan Zhang, Jun Wang, Yan Wang · iScience · 2021
Topic background · Electrode preparation, cell assembly, formation and manufacturing trade-offs.