Electrochemical energy storage is one of the most feasible approaches for building energy storage.Cement-based batteries offer an innovative solution for the integration of structure and energy storage.The key factors affecting the electrochemical performance of cement-based batteries are examined from two perspectives:electrolyte performance and preparation techniques.The electrical conductivity of cement-based materials is evaluated through resistivity,and the effects of conductive material types and contents,water content,and water-binder ratio on their properties are compared.The results indicate that a carbon black content of 10%and a water-binder ratio of 0.6 represent the optimal mix for cement-based materials.Additionally,the preparation process for cement-based batteries is optimized.Based on volume energy density measurements,the ranking is as follows:metal implant technique>metal coating technique>powder mixing technique.The powder mixing technique is the simplest,the metal implant technique stores more energy,and the metal coating technique allows for secondary charge and discharge.
关键词
建筑储能/水泥基电池/电化学性能/粉末混合法/金属体植入法/金属涂层法
Key words
building energy storage/cement-based battery/electrochemical performance/powder mixing technique/metal implant technique/metal coating technique
维普
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