Lithium sulfide manufacturing equipment

By designing suitable reactor materials and temperature conditions in lithium sulfur production equipment and adopting a device that effectively removes water vapor, the problems of corrosion and low purity in lithium sulfur production are solved, and high-purity and high-yield lithium sulfur production are achieved.

JP2025507756AActive Publication Date: 2025-03-21レイク テクノロジー リミテッド
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Patent Information

Application Number
JP2024550782
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-02-28
Filing Date
2023-02-10
Publication Date
2025-03-21
Estimated Expiration
2043-02-10

AI Technical Summary

Technical Problem

The prior art has corrosion problems and low product purity and yield in the production of lithium sulfur. It is mainly due to the corrosion and side reaction caused by the water vapor generated when the hydrosulfide reacts with lithium metal, which reduces the purity and yield of lithium sulfur.

Method used

A lithium sulfur production equipment was designed to ensure that the lithium metal can effectively remove water vapor when reacting with hydrosulfide, reduce side reactions and corrosion, and improve the purity and yield of lithium sulfur by selecting appropriate materials and temperature conditions in the reactor. The equipment includes a reaction chamber, a device for supplying lithium metal, a hydrosulfide supply device, a heating device, and a device for removing water vapor.

Benefits of technology

Through the design of this equipment, it can effectively reduce the corrosion of the reactor, improve the purity and output of lithium sulfur, improve production economy, and ensure high-quality large-scale production of lithium sulfur.

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Abstract

The lithium sulfide manufacturing apparatus according to the present invention includes a reaction chamber having a reaction space for producing lithium sulfide and configured to move a supplied lithium raw material along a predetermined direction, a lithium raw material supply unit configured to continuously supply a lithium raw material to an upstream side of the reaction chamber in the predetermined direction, a hydrogen sulfide supply unit configured to supply hydrogen sulfide to the reaction chamber, a heating unit configured to heat the reaction space, a lithium sulfide recovery unit provided on the downstream side of the reaction chamber in the predetermined direction and configured to recover lithium sulfide produced by a reaction between hydrogen sulfide and a lithium raw material in the reaction chamber, an inert gas supply unit provided on the upstream side of the reaction chamber in the predetermined direction and configured to supply an inert gas to the upstream side of the reaction chamber in the predetermined direction, and a moisture removal unit provided on the downstream side of the reaction chamber in the predetermined direction, recovered gas discharged from the reaction chamber, removed water vapor from the gas, and then re-supplied the gas to the upstream side of the reaction chamber in the predetermined direction, and the hydrogen sulfide supply unit is a hydrogen sulfide reactor that synthesizes hydrogen sulfide using liquid sulfur sprayed from a liquid sulfur spray tube and hydrogen gas.
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