Systems and methods for extracting lithium metal ions from a lithium containing ore such as spodumene or lithium salts are provided. The lithium ore or salt is suspended in a hydroxide salt or eutectic and heated to produce a molten salt suspension that is used to electroplate lithiated transition metal oxides on an electrode. Lithium metal or lithium ions can be isolated from the deposited lithiated transition metal oxides. A second metal ore may be included in the suspension and processed with the lithium ore.

Systems and methods for extracting lithium metal ions from a lithium containing ore such as spodumene or lithium salts are provided. The lithium ore or salt is suspended in a hydroxide salt or eutectic and heated to produce a molten salt suspension that is used to electroplate lithiated transition metal oxides on an electrode. Lithium metal or lithium ions can be isolated from the deposited lithiated transition metal oxides. A second metal ore may be included in the suspension and processed with the lithium ore.

An electroplating solution for lithium metal, and a method for preparing a lithium metal electrode using the same, and in particular, while preparing a lithium metal electrode using electroplating, a lithium metal electrode having enhanced surface properties may be prepared by electroplating using a plating solution including a lithium nitrogen oxide and a metal nitrogen oxide, and, by using such a lithium metal electrode in a battery, lifetime properties of the battery may be enhanced.

An electroplating solution for lithium metal, and a method for preparing a lithium metal electrode using the same, and in particular, while preparing a lithium metal electrode using electroplating, a lithium metal electrode having enhanced surface properties may be prepared by electroplating using a plating solution including a lithium nitrogen oxide and a metal nitrogen oxide, and, by using such a lithium metal electrode in a battery, lifetime properties of the battery may be enhanced.

In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.

In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.

Disclosure relates to an electrochemical lithium recovery system, and the electrochemical lithium recovery system is characterized by having a first flow electrode module that selectively extracts lithium ions from an object solution containing a waste battery active material by electrical attraction, and a second flow electrode module recovering the lithium ions extracted by the first flow electrode module, by the electric repulsive force. Accordingly, the electrochemical lithium recovery system does not require a high temperature treatment process, does not require a large amount of chemicals, and can ensure high recovery efficiency.

Disclosure relates to an electrochemical lithium recovery system, and the electrochemical lithium recovery system is characterized by having a first flow electrode module that selectively extracts lithium ions from an object solution containing a waste battery active material by electrical attraction, and a second flow electrode module recovering the lithium ions extracted by the first flow electrode module, by the electric repulsive force. Accordingly, the electrochemical lithium recovery system does not require a high temperature treatment process, does not require a large amount of chemicals, and can ensure high recovery efficiency.

The method includes: filling and levelling of a heat insulation layer on a cathode shell bottom; its coverage from above with a refractory layer; installation of the cathode bottom and side blocks with subsequent sealing of joints or seams between them with cold ramming paste and further monolithic baking; wherein: the levelled heat insulation layer is covered with a lower barrier layer of graphite foil placed between layers of fiberboard sheets; at least one refractory layer is formed; an upper barrier layer of graphite foil is placed between the layers of fiberboard sheets; all formed layers are simultaneously compacted to achieve alignment of the uppermost layer surface with a lower edge plane of the ports in the cathode shell; and the refractory layer of 20-30 mm thick is formed above the upper layer, according to some embodiments.

The method includes: filling and levelling of a heat insulation layer on a cathode shell bottom; its coverage from above with a refractory layer; installation of the cathode bottom and side blocks with subsequent sealing of joints or seams between them with cold ramming paste and further monolithic baking; wherein: the levelled heat insulation layer is covered with a lower barrier layer of graphite foil placed between layers of fiberboard sheets; at least one refractory layer is formed; an upper barrier layer of graphite foil is placed between the layers of fiberboard sheets; all formed layers are simultaneously compacted to achieve alignment of the uppermost layer surface with a lower edge plane of the ports in the cathode shell; and the refractory layer of 20-30 mm thick is formed above the upper layer, according to some embodiments.