IP Library › Granted Patent US 12689102

Granted Patent B2

US 12689102 · App. 18/180,417 · Granted Jul 21, 2026

Electrochemical device and electronic device

Inventors: Guowen Zhang (Ningde City, CN); Wu Ma (Ningde City, CN); Shengyu Hao (Ningde City, CN)

Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED

H01M50/567 H01M50/55

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Quick Facts

Patent No.: US 12689102
App. No.: 18/180,417
Granted: Jul 21, 2026
Kind: B2

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Abstract

An electrochemical device includes a housing, an electrode assembly, and a first electrode. The electrode assembly is accommodated in an accommodation cavity of the housing. The first electrode includes a first plug-in portion. The first plug-in portion extends away from the accommodation cavity and protrudes beyond an outer surface of the housing. The first plug-in portion is configured to be snap fitted to a first jack of an external device. The first plug-in portion is provided with a groove or an elastic bulge. The groove or the elastic bulge of the first plug-in portion is configured to be snap-fitted to a first elastic bulge disposed protrusively on an outer wall of the first jack or the first groove provided on an inner wall of the jack respectively.

Claims (53)

1 . An electrochemical device, comprising a housing and an electrode assembly, wherein the housing defines an accommodation cavity, and the electrode assembly is accommodated in the accommodation cavity; the electrochemical device further comprises a first electrode and a second electrode, and the second electrode is disposed apart from the first electrode;

the first electrode comprises a first plug-in portion, the first plug-in portion extends away from the accommodation cavity and protrudes beyond an outer surface of the housing; and

the first plug-in portion is configured to be snap-fitted to a first jack of an external device;

wherein, a first groove is provided on an outer surface of the first plug-in portion and the first groove is configured to be snap-fitted to a first elastic bulge disposed protrusively on an inner wall of the first jack; or, the first elastic bulge is disposed protrusively on the outer surface of the first plug-in portion and the first elastic bulge is configured to be snap-fitted to the first groove made on the inner wall of the first jack,

the second electrode comprises a second plug-in portion, the second plug-in portion extends away from the accommodation cavity and protrudes beyond the outer surface of the housing; and the first plug-in portion and the second plug-in portion satisfy the following conditions;

the first plug-in portion and the second plug-in portion are spaced apart in a second direction or in a third direction, the second plug-in portion is configured to be snap-fitted to the first jack of the external device, a second groove is made on an outer surface of the second plug-in portion, and the second groove is configured to be snap-fitted to a second elastic bulge disposed protrusively on an inner wall of the first jack; or, the second elastic bulge is disposed protrusively on the outer surface of the second plug-in portion, and the second elastic bulge is configured to be snap-fitted to the second groove made on the inner wall of the first jack; or

the first plug-in portion and the second plug-in portion are staggered in the second direction, the second plug-in portion is configured to be inserted into and snap-fitted to a second jack of the external device, a second groove is made on an outer surface of the second plug-in portion, and the second groove is configured to be snap-fitted to a second elastic bulge disposed protrusively on an inner wall of the second jack; or, the second elastic bulge is disposed protrusively on the outer surface of the second plug-in portion, and the second elastic bulge is configured to be snap-fitted to the second groove made on the inner wall of the second jack;

a first direction is an insertion direction of the first plug-in portion into the first jack of the external device, and the first direction, the second direction, and the third direction are perpendicular to each other, and

the electrochemical device further comprises a first insulation structure between the first plug-in portion and the second plug-in portion, the first insulation structure is fixed to the housing, and the first insulation structure abuts directly with the first plug-in portion and the second plug-in portion respectively.

2 . The electrochemical device according to claim 1 , wherein an outline of the first plug-in portion is in a shape of a cuboid, a cylinder, or a polygonal prism, and the first groove is made on the outer surface of the first plug-in portion.

3 . The electrochemical device according to claim 2 , wherein an outline of the second plug-in portion is in a shape of a cuboid, a cylinder, or a polygonal prism, and the second groove is made on the outer surface of the second plug-in portion.

4 . The electrochemical device according to claim 2 , wherein, the outline of the first plug-in portion is in the shape of the cuboid, and the first groove is arc-shaped;

along the first direction, a chord length of the first groove is less than a length of the first plug-in portion, and a length of the first groove is equal to the chord length of the first groove;

along the second direction, a chord height of the first groove is less than a width of the first plug-in portion, and a ratio of the chord length to the chord height of the first groove is 1 to 20; and

along the third direction, a height of the first groove is less than a height of the first plug-in portion, wherein

the first direction is an insertion direction of the first plug-in portion, and the first direction, the second direction, and the third direction are perpendicular to each other.

5 . The electrochemical device according to claim 4 , wherein, the first groove satisfies at least one condition selected from the group consisting of:

a. along the first direction, the chord length of the first groove is 1 to 15 mm;

b. along the second direction, the chord height of the first groove is 0.1 to 10 mm; and

c. along the third direction, the height of the first groove is less than the height of the first plug-in portion by at least 0.1 mm.

6 . The electrochemical device according to claim 4 , wherein, the outline of the second plug-in portion is in the shape of the cuboid, and the second groove is arc-shaped;

along the first direction, a chord length of the second groove is less than a length of the second plug-in portion, the chord length of the second groove is 1 to 15 mm, and, on the outer surface of the second plug-in portion, a length of the second groove is equal to the chord length of the second groove;

along the second direction, a chord height of the second groove is less than a width of the second plug-in portion, the chord height of the second groove is 0.1 to 10 mm, and a ratio of the chord length to the chord height of the second groove is 1 to 20; and

along the third direction, a height of the second groove is less than a height of the second plug-in portion by at least 0.1 mm.

7 . The electrochemical device according to claim 1 , wherein the first insulation structure snap-fits between the first plug-in portion and the second plug-in portion.

8 . The electrochemical device according to claim 7 , wherein, a first snap-fit slot is made on a surface of the first plug-in portion, the surface of the first plug-in portion being oriented toward the first insulation structure; a first snap-fit portion is disposed protrusively on a first surface of the first insulation structure, the first surface of the first insulation structure being oriented toward the first plug-in portion, and the first snap-fit portion is snap-fitted in the first snap-fit slot; and

a second snap-fit slot is made on a surface of the second plug-in portion, the surface of the second plug-in portion being oriented toward the first insulation structure, a second snap-fit portion is disposed protrusively on a second surface of the first insulation structure, the second surface of the first insulation structure being oriented toward the second plug-in portion, and the second snap-fit portion is snap-fitted in the second snap-fit slot.

9 . An electronic device, comprising an electrochemical device, the electrochemical device comprising a housing and an electrode assembly, wherein the housing defines an accommodation cavity, and the electrode assembly is accommodated in the accommodation cavity; characterized in that, the electrochemical device further comprises a first electrode and a second electrode, and the second electrode is disposed apart from the first electrode;

the first electrode comprises a first plug-in portion, the first plug-in portion extends away from the accommodation cavity and protrudes beyond an outer surface of the housing; and

the first plug-in portion is snap-fitted to a first jack of the electronic device, a first groove is made on an outer surface of the first plug-in portion, and the first groove is snap-fitted to a first elastic bulge disposed protrusively on an inner wall of the first jack; or, the first elastic bulge is disposed protrusively on the outer surface of the first plug-in portion, and the first elastic bulge is snap-fitted to the first groove made on the inner wall of the first jack,

the first plug-in portion and the second plug-in portion are spaced apart in a second direction or the first plug-in portion and the second plug-in portion are spaced apart in a third direction, the second plug-in portion is configured to be inserted into and snap-fitted to the first jack of the external device, a second groove is made on an outer surface of the second plug-in portion, and the second groove is configured to be snap-fitted to a second elastic bulge disposed protrusively on an inner wall of the first jack; or, the second elastic bulge is disposed protrusively on the outer surface of the second plug-in portion, and the second elastic bulge is configured to be snap-fitted to the second groove made on the inner wall of the first jack; or

the first plug-in portion and the second plug-in portion are staggered in the second direction, the second plug-in portion is configured to be inserted into and snap fitted to a second jack of the external device, a second groove is made on an outer surface of the second plug-in portion, and the second groove is configured to be snap-fitted to a second elastic bulge disposed protrusively on an inner wall of the second jack; or, the second elastic bulge is disposed protrusively on the outer surface of the second plug-in portion, and the second elastic bulge is configured to be snap-fitted to the second groove made on the inner wall of the second jack;

10 . The electronic device according to claim 9 , wherein an outline of the first plug-in portion is in a shape of a cuboid, a cylinder, or a polygonal prism, and the first groove is made on the outer surface of the first plug-in portion.

11 . The electronic device according to claim 10 , wherein an outline of the second plug-in portion is in a shape of a cuboid, a cylinder, or a polygonal prism, and the second groove is made on the outer surface of the second plug-in portion.

12 . The electronic device according to claim 10 , wherein that the outline of the first plug-in portion is in the shape of the cuboid, and the first groove is arc-shaped;

along the first direction, a chord length of the first groove is less than a length of the first plug-in portion, and a length of the first groove is equal to the chord length of the first groove;

along a second direction, a chord height of the first groove is less than a width of the first plug-in portion, and a ratio of the chord length to the chord height of the first groove is 1 to 20; and

along the third direction, a height of the first groove is less than a height of the first plug-in portion, wherein

the first direction is an insertion direction of the first plug-in portion, and the first direction, the second direction, and the third direction are perpendicular to each other.

13 . The electronic device according to claim 12 , wherein that the first groove satisfies at least one condition selected from the group consisting of:

a. along the first direction, the chord length of the first groove is 1 to 15 mm;

b. along the second direction, the chord height of the first groove is 0.1 to 10 mm; and

c. along the third direction, the height of the first groove is less than the height of the first plug-in portion by at least 0.1 mm.

14 . The electronic device according to claim 12 , wherein that the outline of the second plug-in portion is in the shape of the cuboid, and the second groove is arc-shaped;

along the third direction, a height of the second groove is less than a height of the second plug-in portion by at least 0.1 mm.

15 . The electronic device according to claim 9 , wherein the first insulation structure snap-fits between the first plug-in portion and the second plug-in portion.

16 . The electronic device according to claim 15 , wherein, a first snap-fit slot is made on a surface of the first plug-in portion, the surface of the first plug-in portion being oriented toward the first insulation structure; a first snap-fit portion is disposed protrusively on a first surface of the first insulation structure, the first surface of the first insulation structure being oriented toward the first plug-in portion, and the first snap-fit portion is snap-fitted in the first snap-fit slot; and