How much do you know of all solid state lithium battery?

Source: 2020 - 03 - 29 thus hits: 1. An overview of all the lithium battery all solid state lithium batteries of the solid data are based on solid data, do not contain any liquid. Solid-state lithium batteries are divided into all solid state lithium ion battery and solid-state metal lithium batteries, the cathode of the former does not contain lithium metal, the latter's negative contains no metal lithium. Before liquid lithium ion battery, all solid state lithium battery existed, but with lithium ( Lithium dendrite) Use the relevant safety issues in the market, there have been no see my articles published on Goodenough WengWei: before Posting a new goody na ~ John to re-post to zhihu according to the development trend of technology, compared with the liquid lithium ion battery, all solid state lithium batteries may have a good safety performance, high energy density, long cycle life, etc. In recent years, the solid electrolyte data, especially sulfide electrolyte data, made significant breakthrough in the field of ionic conductivity, solid-state lithium battery technology gradually got the attention of research institutions and large enterprises all over the world. 2. The classification of all solid state lithium batteries as solid-state lithium batteries, all kinds of 'all solid state' or 'solid' concept of lithium battery emerge in endlessly. Solid state lithium battery: some researchers will solid electrolyte and a small amount of liquid electrolyte quality or volume of cells called 'solid-state batteries. All solid state lithium battery: the battery is made up of solid electrode and a solid electrolyte data. In working temperature range, the battery does not contain any quality and volume fraction of liquid electrolyte. 3. All solid state lithium batteries the potential advantages of high safety performance: solid electrolytes replace flammable liquid electrolyte, solid electrolyte is expected to overcome the high energy density of lithium dendrite: cathode for lithium metal anode long cycle life, can prevent the liquid electrolyte in the process of charging and discharging the formation and growth of solid electrolyte interface membrane wide electrochemical window, up to 5 v, suitable for high pressure positive electrode convenient data recovery: no liquid waste, processing is relatively simple. The disadvantage of all solid state lithium battery specific key skills: the interface between the solid electrolyte and electrode: contains large impedance as well as the interface between the anode and electrolyte interface compatibility is poor, Positive electrode materials and electrolyte, the space charge layer between the element diffusion and reaction between the anode materials and electrolyte and electrode material charge and discharge volume change caused by the interface stress) , the reaction between lithium metal anode and electrolyte; The positive data efficient ions and electrons in the express way construction specific solutions: add modified electrodes and the electrolyte interface layer ( Buffer layer) Data to the positive electrode particles were coated and modify the use of nanotechnology, Data nano, changing data of micro/nano structure description) The electrolyte modification ( Replace the components, data synthesis) And so on.