JPS59103871A - Packing for metal lithium - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to packaging for metallic lithium, which can be almost completely moisture-proofed for a predetermined period of time, since metallic lithium is highly susceptible to moisture absorption in the air.

Conventional moisture-proofing methods for metallic lithium include storing lithium in a can filled with oil, or (a) sealing it in a metal foil bag such as Sanhaku. The former method has the disadvantage that it takes a lot of effort to remove oil from the surface of the Richiku Δ after it is taken out of the container, and the latter method has the disadvantage that the metal foil has holes left in it from manufacturing, and the creases during packaging. There is a disadvantage that airtightness is often impaired due to the formation of bicyholes. A further drawback common to both is that the state of storage of the lithium cannot be observed until after the packaging is opened. A synthetic resin film with excellent airtightness and transparency may be used as a confidential material to solve these problems, but at present there is no film that is completely airtight. In addition, packaging bags filled with silica gel as a moisture absorbing material have almost no effect as packaging for metallic lithium, and those filled with pentagonal lithium react with lithium when exposed to outside air, producing hydrogen and an aqueous solution. There is a drawback that it loses its effectiveness.

Therefore, the present invention has been developed by repeatedly packaging appropriately sewn metallic lithium as a moisture absorbing material in a sealed bag made of synthetic resin film Δ that has high airtightness and transparency, and sealing the innermost one. By enclosing desired metal lithium in the bag, it is possible to provide a package of metal lithium with high moisture resistance. Furthermore, the present invention further improves moisture resistance by sealing a gas such as an inert gas or completely dehumidified air together with metallic lithium as a moisture absorbing material in each of the multiple sealed bags.

Furthermore, the present invention combines a plurality of sealed bags each containing multiple layers of metallic lithium, together with inert scum or completely dehumidified air.
The present invention provides a package for metallic lithium that can be stored for a longer period of time and is easily transported by being sealed in a sealed container such as a metal can.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, (4) 1 (4), (4) are sealed bags made of synthetic resin film with high airtightness and transparency, made of the same material and made smaller in the same order, respectively; (1) (2) is a seal formed by closely contacting the edges of each sealed bag (4), (2) is a small amount of metallic lithium sealed as a moisture absorbing material in each sealed bag (A) 1 (4), ( 3) is the desired metal lithium to be originally packaged, which is sealed inside the above-mentioned sealed bag (4) on the outside and the sealed bag (A) which is the innermost sealed bag after being packaged in multiple layers.

When packaging the above, each sealed bag (A), (A), (A)
By enclosing an inert gas such as argon or completely dehumidified air from which water has been removed in each of the containers, the circulation of outside air is further improved and a moisture-proof package can be created. In addition, a plurality of sealed bags each filled with inert scum or completely dehumidified air together with metal lithium for moisture absorption and packaged in multiple layers as described above, are also packed together with inert scum or completely dehumidified air. Conventionally known sealed containers such as metal cans (
(not shown) can be stored for a long period of time due to better blocking of outside air circulation. Furthermore, transportation becomes easier.

In the Examples, 3-nate films of o, p, p, gv-H, polyethylene, and ethylene vinyl alcohol (combination, etc.) were used.

As described above, multiple sealed bags made of synthetic resin film with high airtightness and transparency are used, and moisture is absorbed inside each sealed bag on the outside of the sealed bag containing the desired metal lithium. According to the present invention, in which small pieces of metallic lithium are encapsulated as a material, the moisture permeability is reduced in proportion to the moisture permeability of each valley bag by using multiple synthetic resin 2 films, and the inflow of outside air is extremely thin. In addition, the metal lithium l- sealed in each bag removes the moisture in the dilute outside air flowing in from the outside +1111, so the extremely small amount of moisture remains in the desired metal lithium located in the center for a long time. The moisture-proof state of the packaged gold S lithium can be maintained for a long period of time, and since each sealed bag is transparent, the preserved state can be observed from the outside at any time.

It should be noted that when putting the present invention into practice, the number of layers of the sealed bag will be decided experimentally depending on the storage time, the moisture permeability of the film material of the bag, and the breakage of the metal lithium enclosed as a moisture absorbent material. Not even.

[Brief explanation of drawings]

The drawing is a partially cutaway diagram showing one embodiment of the present invention. A (A, A, A,)...'Sealing bag, 1... Seal part, 2... Metallic lithium as a moisture absorbing material, 3... Metallic lithium.

Claims (3)

[Claims] (1) Inside a sealed bag made of a synthetic resin film that has airtightness and transparency, the innermost bag is filled with transparent metal lithium as a heat absorbing material. A lithium firefly packaging made by enclosing the desired metal lithium in a whistle-sealing bag. (2) The metallic lithium according to claim 1, characterized in that a gas such as inert scum or completely dehumidified air is sealed together with metallic lithium as a heat absorbing material in each of the multiple I51 bags. packaging. (3) Meng according to claim 2, which is characterized in that an imaginary number of sealed bags, each containing multiple packages of metallic lithium, are sealed together with inert scum or completely dehumidified air in a sealed container such as a Jinpeng can. Genus lithium packaging.