In Order To Shorten The Plug-in Waiting Time Of Electric Vehicles, The Research Team Of China University Of Science And Technology Has Been Actively Looking For New Solutions For Example, In An Article Published In The Journal Progress Of Science On April 27, 2022, Researchers Introduced "lithium Ion Battery With Double Gradient Structure Design To Realize Rapid Charging" As A Major Breakthrough In The Research Of EV Power Battery, This New Lithium-ion Battery Can Charge 60% In 6 Minutes!
Figure 1: Concentration Polarization Analysis Of Different Electrode Structures / Utilization Of Simulated Graphite Particles Under Different Current Densities
A Major Obstacle To The Popularity Of Traditional EV Power Batteries Is That The Energy Replenishment Speed Is Far Behind The Traditional Fuel Models. The Breakthrough Of This Research Lies In The Anode Material Of Lithium-ion Battery (which Can Maintain More Energy And Charge Faster).
Figure 2: Microstructure Characterization And Electrochemical Performance Evaluation Of Thick Double Gradient / Random Graphite Anode
One Exciting Possibility Involves Replacing The Traditional Mixture Of Graphite And Copper With Pure Lithium Metal, An "ideal Material" That Can Achieve Ten Times The Capacity Of Current Energy Storage Devices.
Other Interesting Examples Include The Introduction Of Experimental Nanospheres Into The Anode To Increase Capacity. Or Completely Eliminate The Anode To Make A More Compact And Affordable Battery.
Study Layout - 3: G@Cu -Fast Charging Performance Evaluation Of Cunws Anode In Physical Full Battery
This Study Involves Using A Novel Porous Structure To Improve The Standard Anode And Dispersing Graphite Particles Of A Certain Size In It - Which Aims To Establish A Particle Level Theoretical Model To Determine The Best Arrangement That Can Solve The Disordered Properties Of Today's Anode.
This Characteristic Space Means That The Battery Cannot Be Charged Well And Quickly, But Thanks To The Distribution Of Particles Of Different Sizes And Space In The Anode, The Research Team Also Introduced Copper Nanowires And Coatings, And Formed New Ideal Components Through Cold And Heat Treatment.
Figure 4: Comparison Of Fast Charging Performance / Energy Density Between New Material And Graphite Negative Electrode
TechXplore It Is Pointed Out That By Integrating The New Anode Into The Standard Lithium-ion Battery, The Battery Can Charge 60% In Only 5.6 Minutes. Even If It Is Charged To 80%, It Only Takes 11.4 Minutes.
Obviously, If Successfully Promoted, This Fast Lithium-ion Charging Technology Can Provide Strong Support For The "10 Mile (16 Km) / Min" Fast Charging Vision Proposed By The U.S. Department Of Energy.
Interested Friends Can Move To scientific Advances 》Refer To The Full Text Of Extreme Fast Charging Lithium Ion Battery Enabled By Dual Gradient Structure Design.