FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and specifically to a method of producing a nanostructured multilayer silicon anode for lithium batteries. In the proposed method, polycrystalline silicon (2) is applied on titanium substrate (3) on both sides, then on both sides a thin metal foil (1) is placed, placed inside the plastic, and material is irradiated by laser pulsed radiation of above-threshold power, wherein channels (5) are formed, the size of which is controlled by laser radiation power, the space between channels is filled with silicon nanofibres (4) coated with a thin carbon film. Ordered nanowhiskers (4) also grow on walls of channels (5). Such processing of complex heterostructure allows to increase 1000 times the anode volume and its strength, since silicon non-disabling nanowhiskers (4) have higher strength and lower value of Young's modulus compared to micrometric sizes of silicon.
EFFECT: high capacity of the anode is the technical result of the invention.
4 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CREATING ON SHEET MATERIAL IN THIN LAYER OF IMAGE DISAPPEARING AND SHIMMERING WITH RAINBOW COLOURS AND SHEET MATERIAL FOR IMPLEMENTATION THEREOF | 2019 |
|
RU2718730C1 |
| HIDDEN IMAGE IN THE THIN SHEET MATERIAL CREATION METHOD FROM PLURALITY OF THE VOLUMETRIC NANO-STRUCTURES PAIRS FOR THE SECURITIES AND IDENTIFICATION DOCUMENTS PROTECTION AGAINST FORGERY BY SEVERAL COMMON CHARACTERS | 2018 |
|
RU2674691C1 |
| METHOD OF OBTAINING THREADLIKE NANOCRYSTALS (NANOWISKERS) IN THE BODY OF A SHEET MATERIAL | 2017 |
|
RU2671325C1 |
| METHOD TO MANUFACTURE THIN-FILM ANODE OF LITHIUM-ION ACCUMULATORS BASED ON FILMS OF NANOSTRUCTURED SILICON COATED WITH SILICON DIOXIDE | 2011 |
|
RU2474011C1 |
| ELECTROCHEMICAL METHOD OF FORMING OXIDE TUNGSTEN BRONZE CRYSTALS FROM NANOWHISKERS (VERSIONS) | 2019 |
|
RU2706006C1 |
| METHOD TO PROTECT AGAINST COUNTERFEIT SECURITIES | 2018 |
|
RU2685666C1 |
| METHOD OF SECURITIES PROTECTION AGAINST FORGERY | 2016 |
|
RU2651330C1 |
| ELECTROCHEMICAL METHOD OF PRODUCTION OF COPPER OXIDE NANOWHISKERS | 2019 |
|
RU2747920C1 |
| METHOD OF CREATING INDIVIDUAL IRIDESCENT IMAGE FOR PROTECTION AGAINST FORGERY OF IDENTIFICATION DOCUMENT | 2017 |
|
RU2658492C1 |
| METHOD FOR CREATING ORIGINAL COLOUR PROTECTIVE IMAGE INSIDE SHEET MATERIAL | 2016 |
|
RU2634571C1 |
