IP Library › Granted Patent US 12698143
Granted Patent B2
US 12698143 · App. 18/256,032 · Granted Aug 4, 2026

Packaged negative electrode material, method for transporting negative electrode material, container for storing negative electrode material, method for storing negative electrode material, and method for manufacturing negative electrode

Inventors: Kento Hoshi (Tokyo, JP); Motohiro Isaka (Tokyo, JP)
Assignee: RESONAC CORPORATION
B65D81/24
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Quick Facts
Patent No.
US 12698143
App. No.
18/256,032
Granted
Aug 4, 2026
Kind
B2
Abstract

A packaged negative electrode material, comprising a container and a negative electrode material contained in the container, the container having a water vapor transmission rate of 150 g/(m 2 ·d)(40° C./90% RH) or less, and the negative electrode material having a micropore volume of 0.40×10 −3 m 3 /kg or less.

Claims (17)

1 . A packaged negative electrode material, comprising a container and a negative electrode material contained in the container,

the container having a water vapor transmission rate of 150 g/(m 2 ·d)(40 C°/90% RH) or less, and

the negative electrode material having a micropore volume of 0.40×10 −3 m 3 /kg or less.

2 . The packaged negative electrode material according to claim 1 , wherein the container has a volume of from 6000 cm 3 to 40000 cm 3 .

3 . The packaged negative electrode material according to claim 1 , wherein a filling ratio of the negative electrode material in the container is from 20% to 90%.

4 . The packaged negative electrode material according to claim 1 , wherein the negative electrode material is a negative electrode material for a lithium ion secondary battery.

5 . The packaged negative electrode material according to claim 1 , wherein the container comprises polyethylene.

6 . The packaged negative electrode material according to claim 1 , wherein the container is deformable.

7 . A method for transporting a negative electrode material, the method comprising transporting the packaged negative electrode material according to claim 1 .

8 . The method for transporting a negative electrode material according to claim 7 , wherein a manner of transportation is marine transport.

9 . A method for manufacturing a negative electrode, the method comprising:

extracting the negative electrode material from the container of the packaged negative electrode material according to claim 1 ; and

manufacturing a negative electrode using the negative electrode material extracted from the container.

10 . The method for manufacturing a negative electrode according to claim 9 , wherein the extracting the negative electrode material from the container and the manufacturing a negative electrode using the negative electrode material extracted from the container are conducted consecutively.

11 . A method for storing a negative electrode material, the method comprising storing a negative electrode material in a container,

the container having a water vapor transmission rate of 150 g/(m 2 ·d)(40 C°/90% RH) or less, and

the negative electrode material having a micropore volume of 0.40×10 −3 m 3 /kg or less.