A preparation method of CsDFP for aqueous negative electrode slurry includes carrying out ion exchange reactions with LiPO.sub.2F.sub.2 and a cesium source. The activation energy of Li.sup.+ intercalation in the negative electrode is reduced due to the existence of Cs.sup.+, leading to a better rate performance. Further, the impedance growth rate of the batteries is reduced and the high temperature storage performance is excellent since PO.sub.2F.sub.2— participates in the electrochemical reaction to form a stable low-impedance SEI film on the surface of the negative electrode plate. Moreover, films are continuously formed to repair the SEI films under the gradual release of CsDFP, which is conducive to inhibiting the growth of lithium dendrites during long-term high-rate cycling, thereby obtaining an improved cycle performance.

An electrolytic system and method of manufacturing white phosphorus.

An electrolytic system and method of manufacturing white phosphorus.

An improved method of lithium recovery from borax dilute solution is provided. In this method, boron in the borax dilute solution is removed from the medium as borax decahydrate and while this removal process is carried out, liquid-liquid extraction with organic sedimentary chemicals or ion exchange resins are not used.

The present invention is related to a method for producing lithium chloride aqueous solution and a method for producing lithium carbonate, and comprises introducing calcium chloride into a slurry containing a solvent and lithium phosphate; and obtaining a precipitate of chloroapatite which is an poorly soluble phosphoric acid compound and a lithium chloride aqueous solution by reacting lithium phosphate and calcium chloride in the slurry containing the solvent and lithium phosphate.

An improved method of lithium recovery from borax dilute solution is provided. In this method, boron in the borax dilute solution is removed from the medium as borax decahydrate and while this removal process is carried out, liquid-liquid extraction with organic sedimentary chemicals or ion exchange resins are not used.

A recycling and reworking method of a lithium iron phosphate cathode material is disclosed and includes steps of: (a) providing a lithium iron phosphate recycled material; (b) oxidizing the lithium iron phosphate recycled material in an atmosphere at an oxidation temperature ranged from 300? C. to 400? C. for 1 hour to 5 hours to form a raw material powder composed of LiFePO.sub.4, Fe.sub.7(PO.sub.4).sub.6, Fe.sub.2O.sub.3 and a residual carbon ranged from 0.07 wt. % to 0.6 wt. %; (c) grinding the raw material powder; (d) adjusting the composition of the raw material powder to form a precursor, which has the molar ratio of Li:P=0.99?1.05:1, and the molar ratio of Fe:P=0.98?1.02:1, wherein a carbon source is added; and (e) heat-treating the precursor in an inert gas at a sintering temperature ranged from 500? C. to 800? C. for 8 hours to 12 hours to form a lithium iron phosphate regenerated material.

Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery (LIB) black mass, and/or lithium metal phosphate synthesis from metal phosphates.

Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery (LIB) black mass, and/or lithium metal phosphate synthesis from metal phosphates.

A system and method combine a first reactant with a second reactant to create a reaction product. A first pump is in fluid communication with a reaction vessel and a source of the first reactant. A second pump is in fluid communication with the reaction vessel and a source of the second reactant. A gas sparger is located in the reaction vessel, and the gas sparger is in fluid communication with a gas source for providing gas to the reaction vessel. A controller is configured to execute a program stored in the controller to: (i) receive a sensor signal based on a force exerted by the reaction vessel in a direction toward the sensor, and (ii) operate the first pump and the second pump to deliver to the reaction vessel the first reactant and the second reactant thereby causing a reaction that creates the reaction product.