Polyethylene Terephthalate-Based Materials for Lithium-Ion Battery Separator Applications: A Review Based on Knowledge Domain Analysis

Table 3

Top 20 keyword frequency distribution of published papers.

Keywords	Count	Centrality	Keywords	Count	Centrality
Membrane	14	0.09	Thermal stability	8	0.04
Separator	6	0.08	Electrochemical performance	6	0.04
Performance	6	0.02	Electrostatic separation	6	0.01
Lithium-ion battery	5	0.05	PET	5	0.01
Electrospun	4	0.03	Polyethylene separator	4	0.03
Liquid	3	0.02	Electrical property	3	0.02
Composite separator	3	0.02	Coating layer	3	0.01
Electrolyte	3	0.01	Cell	3	0.00
Particle	3	0.04	Composite	2	0.03
Cycling performance	2	0.02	Cathode	2	0.02