As the global climate continues to warm

capturing carbon dioxide in the air has become one of the most effective measures to reduce greenhouse gas pollution. Carbon dioxide storage systems not only store carbon dioxide in the air

but also consume excess electricity to fill the shortage of electricity supply during peak periods.As the core equipment of CO_2 storage system

the performance of the compressor directly affects the overall performance of the system. This paper summarizes the application scope and performance characteristics of seven different forms of carbon dioxide compressors and the current status of research at home and abroad. The potential problems that may exist in the application of piston

centrifugal and axial flow compressors in CO_2 energy storage systems are discussed

and corresponding suggestions and improvement ideas are given. The results of the study can provide a reference for the design and optimization of CO_2 compressors in the future.