锂(药物)                        
                
                                
                        
                            石墨                        
                
                                
                        
                            扩散                        
                
                                
                        
                            阳极                        
                
                                
                        
                            涂层                        
                
                                
                        
                            储能                        
                
                                
                        
                            纳米技术                        
                
                                
                        
                            材料科学                        
                
                                
                        
                            电池(电)                        
                
                                
                        
                            极化(电化学)                        
                
                                
                        
                            复合材料                        
                
                                
                        
                            化学                        
                
                                
                        
                            热力学                        
                
                                
                        
                            物理                        
                
                                
                        
                            电极                        
                
                                
                        
                            物理化学                        
                
                                
                        
                            功率(物理)                        
                
                                
                        
                            内分泌学                        
                
                                
                        
                            医学                        
                
                                
                        
                            量子力学                        
                
                        
                    
            作者
            
                Wenlong Cai,Chong Yan,Yuxing Yao,Lei Xu,Rui Xu,Lili Jiang,Jia‐Qi Huang,Qiang Zhang            
         
                    
        
    
            
            标识
            
                                    DOI:10.1002/sstr.202000010
                                    
                                
                                 
         
        
                
            摘要
            
            The use of graphite anode renders practical lithium‐ion batteries for effective energy storage. However, graphite anode is the bottleneck to achieve the fast charging of a battery, ascribed to its low operating potential and corresponding incidental lithium plating. Herein the principle of a thin nanoscale layer on the graphite surface to improve charging capability is investigated by applying a three‐electrode device to precisely record the working behavior. The Li + diffusion rate is significantly improved by coating a nanoscale turbostratic carbon layer, in which abundant active sites and additional fast Li + diffusion pathways at the basal‐plane side of graphite sheets render small polarization in a working battery. This fresh understanding enriches the fundamental insights into enhancing the rate performance and facilitating the practical applications of graphite in fast‐charging batteries.
         
            
 
                 
                
                    
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