CN114914644A

CN114914644A - Battery, electrolyte injection method and electrolyte injection equipment

Info

Publication number: CN114914644A
Application number: CN202210570708.5A
Authority: CN
Inventors: 董红文; 李茂松; 徐卫东
Original assignee: Xiamen Haichen New Energy Technology Co Ltd
Current assignee: Xiamen Haichen New Energy Technology Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-16

Abstract

The invention discloses a battery, an electrolyte injection method and electrolyte injection equipment. The battery comprises a battery core, a shell and a sealing structure. The shell is internally provided with an accommodating cavity. At least part of electricity core is located the holding intracavity. The sealing structure forms a sealing effect of the sealing accommodating cavity on the shell. The seal structure is configured to deform at least a portion of the seal structure upon application of a first external force. The cell can be channeled under conditions of at least partial deformation. The channels can be used to direct the flow of electrolyte into the cell. According to the battery provided by the embodiment of the invention, the part of the sealing structure can deform when the first external force is applied, so that the battery is provided with the channel, and electrolyte can be injected into the battery along the channel. When the sealing structure is not subjected to the first external force, the battery cannot form a channel due to the deformation of the sealing structure, so that the sealing of the inside of the battery is facilitated, and the leakage of electrolyte in the battery is avoided.

Description

Battery, electrolyte injection method and electrolyte injection equipment

Technical Field

The invention relates to the technical field of batteries, in particular to a battery, an electrolyte injection method and electrolyte injection equipment.

Background

When the battery is used, the battery undergoes a plurality of charge and discharge cycles, the electrolyte in the battery inevitably has partial irreversible reaction consumption, and if the electrolyte can be supplemented, the service life of the battery can be effectively prolonged. However, in the related art, in order to prevent the electrolyte from leaking and external impurities from entering the electrolyte, the electrolyte injection hole is completely closed after the electrolyte injection is completed, so that the secondary electrolyte injection of the battery is difficult to perform, and the resource waste is caused.

Disclosure of Invention

The invention provides a battery, an electrolyte injection method and electrolyte injection equipment.

The battery comprises a battery core, a shell and a sealing structure, wherein the shell is internally provided with an accommodating cavity, at least part of the battery core is positioned in the accommodating cavity, the sealing structure forms a sealing effect for sealing the accommodating cavity on the shell, the sealing structure is configured to enable at least part of the sealing structure to deform under the condition of applying a first external force, and enable the battery to form a channel under the condition of at least part deformation, and the channel can be used for guiding electrolyte to flow into the battery.

According to the battery provided by the embodiment of the invention, the part of the sealing structure can deform when the first external force is applied, so that the battery is provided with the channel, and electrolyte can be injected into the battery along the channel. When the sealing structure is not subjected to the first external force, the battery cannot form a channel due to the deformation of the sealing structure, so that the sealing of the inside of the battery is facilitated, and the leakage of electrolyte in the battery is avoided.

In certain embodiments, the at least part of the deformation is recoverable to create the sealing effect in the event that the first external force is less than a preset value. In this way, the formation of channels on the battery due to malfunction can be avoided.

In certain embodiments, the predetermined value is zero. In this way, at least part of the deformation will maintain the sealing effect on the channel without being subjected to external forces.

In some embodiments, the passageway is not in communication with the external environment. Therefore, the leading-in effect of the channel on the electrolyte can be ensured.

In certain embodiments, the at least part is comprised of an elastic material. Therefore, the deformation effect of the sealing structure can be conveniently realized.

In some embodiments, the electrolyte is introduced into the accommodation chamber by applying a second external force to the electrolyte under the condition that the battery forms the channel. Therefore, the function of leading the electrolyte into the accommodating cavity can be realized.

In some embodiments, under the condition that the at least part of the liquid is deformed by the first external force, a liquid injection channel communicated with the accommodating cavity can be formed in the sealing structure, and at least part of the liquid injection channel is surrounded by the channel. Therefore, the electrolyte can be conveniently led into the accommodating cavity.

In certain embodiments, the housing comprises a shell and an end cap, the shell and the end cap being sealingly connected, the sealing structure being located on the end cap, the channel being formed on the side of the end cap. In this way, a specific structure of the housing can be realized.

In some embodiments, the end caps include a first end cap and a second end cap, the first end cap and the second end cap are respectively located at both ends of the case, one of the first end cap and the second end cap has a pour hole, and the passage is formed in the one end cap having the pour hole. In this way, a specific structure of the housing can be realized.

In some embodiments, the housing has a filling hole for injecting the electrolyte into the housing, and at least a part of the filling hole forms the passage in the case where the sealing structure is deformed to a degree greater than a preset deformation degree. Thus, the formation of the channel can be facilitated.

In some embodiments, the housing has a liquid injection hole for injecting an electrolyte into the housing, and the sealing structure is capable of sealing and sealing the liquid injection hole before being deformed by the first external force; and under the condition that the sealing structure is deformed by the first external force, the channel can be formed between the sealing structure and the side wall of the liquid injection hole. Thus, the formation of the channel can be facilitated.

In some embodiments, the housing has a liquid injection hole for injecting an electrolyte into the housing, and the sealing structure is capable of sealing and sealing the liquid injection hole before being deformed by the first external force; under the condition that the sealing structure is deformed by the first external force, the channel can be formed in the sealing structure. Thus, the formation of the channel can be facilitated.

The electrolyte injection method is used for a battery, the battery comprises a battery cell, a shell and a sealing structure, an accommodating cavity is formed in the shell, at least part of the battery cell is located in the accommodating cavity, and the sealing structure forms a sealing effect of sealing the accommodating cavity on the shell; the liquid injection method comprises the following steps: applying a first external force to at least a portion of the sealing structure, the at least a portion being deformable under the first external force, the cell being capable of forming a channel under the at least partially deformed condition; directing the electrolyte to flow into the cell along the channel.

According to the electrolyte injection method provided by the embodiment of the invention, the part of the sealing structure can deform when the first external force is applied, so that a channel is formed on the battery, and the electrolyte can be injected into the battery along the channel. When the sealing structure is not subjected to the first external force, the battery cannot form a channel due to the deformation of the sealing structure, so that the sealing of the inside of the battery is facilitated, and the leakage of electrolyte in the battery is avoided.

In some embodiments, the at least part that is deformable is recoverable to form the sealing effect in the event that the first external force is less than a preset value. In this way, the formation of channels on the battery due to malfunction can be avoided.

In certain embodiments, the step of directing the electrolyte along the channel into the cell comprises: and applying a second external force to the electrolyte so as to lead the electrolyte into the accommodating cavity. Therefore, the function of leading the electrolyte into the accommodating cavity can be realized.

The liquid injection equipment is used for injecting electrolyte into a battery, the battery comprises a battery cell, a shell and a sealing structure, an accommodating cavity is formed in the shell, at least part of the battery cell is located in the accommodating cavity, and the sealing structure forms a sealing effect of sealing the accommodating cavity on the shell; the liquid injection equipment is used for: applying a first external force to at least a portion of the sealing structure, the at least a portion being deformable under the first external force, the cell being capable of forming a channel under the at least partially deformed condition; directing the electrolyte to flow into the cell along the channel.

According to the liquid injection equipment provided by the embodiment of the invention, the part of the sealing structure can deform when the first external force is applied, so that a channel is formed on the battery, and electrolyte can be injected into the battery along the channel. When the sealing structure is not subjected to the first external force, the battery cannot form a channel due to the deformation of the sealing structure, so that the sealing of the inside of the battery is facilitated, and the leakage of electrolyte in the battery is avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a partial structural schematic view of a battery according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a channel-forming structure according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a channel-forming structure according to an embodiment of the present invention;

fig. 4 is a partial structural schematic view of a battery according to an embodiment of the present invention;

fig. 5 is a partial structural schematic view of a battery according to an embodiment of the present invention;

fig. 6 is a flowchart of an electrolyte injection method according to an embodiment of the present invention.

Description of the main element symbols:

a battery 100;

the battery cell comprises a battery cell 110, a shell 120, an accommodating cavity 121, a first through hole 122, a shell 123, an end cover 124, a joint 125, a first end cover 126, a second end cover 127, a sealing structure 130, a second through hole 131, a channel 140 and a liquid injection hole 150;

a force application device 200;

the liquid injection channel 210.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to fig. 3, a battery 100 according to an embodiment of the present invention includes a battery cell 110, a casing 120, and a sealing structure 130. The housing 120 has a receiving cavity 121 therein. At least part of the battery cell 110 is located in the accommodating cavity 121. The sealing structure 130 forms a sealing effect of the seal accommodating chamber 121 on the housing 120. The sealing structure 130 is configured to deform at least a portion of the sealing structure 130 upon application of a first external force. The cell 100 can be formed into the channel 140 under conditions that at least partially deform. Channels 140 can be used to direct the flow of electrolyte into cell 100.

In the battery 100 according to the embodiment of the present invention, the sealing structure 130 may be partially deformed when a first external force is applied, so that the channel 140 is formed in the battery 100, and the electrolyte may be injected into the battery 100 along the channel 140. When the sealing structure 130 is not subjected to the first external force, the channel 140 is not formed on the battery 100 due to the deformation of the sealing structure 130, which is beneficial to sealing the inside of the battery 100 and preventing the electrolyte inside the battery 100 from leaking.

Specifically, in fig. 1, the housing 120 integrally forms an accommodating cavity 121, so that the battery cell 110 can be integrally accommodated in the accommodating cavity 121. The sealing structure 130 can seal a through hole of the housing 120, which communicates with the accommodating cavity 121, so as to form a sealing effect on the accommodating cavity 121. The sealing structure 130 may also be an integral structure with the housing 120, and a part of the sealing structure 130 can form a through hole on the sealing structure 130, which is communicated with the accommodating cavity 121, and another part of the sealing structure 130 can seal the formed through hole, so that a sealing effect on the accommodating cavity 121 can be formed.

Referring to fig. 2, the housing 120 includes a first through hole 122. The first external force is denoted as F1. The sealing structure 130 can be interference-coupled with the first through hole 122 to seal the first through hole 122. The a1 direction and the a2 direction correspond to the thickness direction of the housing 120. The first external force is directed in the direction a 2. The application of the first external force may be achieved by force application device 200. The force applying device 200 may apply a force from between the first through hole 122 and the side of the sealing structure 130, which is attached to each other, in the a2 direction to press the sealing structure 130. Under the condition that the external force of the extrusion on the sealing structure 130 is the first external force, the sealing structure 130 is deformed, and at the position where the force application device 200 applies force on the sealing structure 130, the sealing structure 130 gradually gets away from the first through hole 122 to form a gap, so that the force application device 200 can extend into the gap along the direction a2, and finally, the gap between the outer surface of the sealing structure 130 and the inner side wall of the first through hole 122 can form the channel 140.

Referring to fig. 3, the sealing structure 130 can cooperate with the housing 120 to seal the accommodating cavity 121 without receiving a first external force. The first external force is denoted as F1. The a1 direction and the a2 direction correspond to the thickness direction of the housing 120. The first external force is directed in the direction a 2. The application of the first external force may be achieved by force application device 200. In the a2 direction, the force applying device 200 may apply a force to the sealing structure 130 on a surface of the sealing structure 130 to compress the sealing structure 130. Under the condition that the external force of the extrusion on the sealing structure 130 is the first external force, the sealing structure 130 is deformed, and at the position where the force application device 200 applies force on the sealing structure 130, the surface of the sealing structure 130 is gradually recessed and finally forms the second through hole 131 which can be communicated with the accommodating cavity 121, so that the force application device 200 can extend into the second through hole 131 along the direction a4, and finally the channel 140 can be formed in the second through hole 131.

In addition, it is understood that a portion of the sealing structure 130 may be deformed under the compression of the first external force, so as to facilitate the formation of the channel 140, and other portions of the sealing structure 130 may not be deformed under the compression of the first external force, or may be deformed to a lesser extent than the portion for forming the channel 140. For convenience of description, some embodiments of the present invention will be described in terms of the case where the sealing structure 130 as a whole can be deformed. It will be appreciated by those skilled in the art that the sealing structure 130 may also be configured to be at least partially deformable based on the embodiments described herein. In some embodiments, other portions of the seal structure 130 may be used to achieve a securing effect of the seal structure 130 on the housing 120.

In certain embodiments, at least a portion of the sealing structure 130 is able to recover to form a sealing effect in the event the first external force is less than a preset value.

In this manner, the channel 140 formed on the battery 100 due to the erroneous operation can be avoided.

Specifically, when the first external force is smaller than the preset value, it may indicate that the main body currently applying the first external force does not guide the electrolyte, and may be caused by an accidental touch of other structures around the battery 100 to the sealing structure 130, and the sealing structure 130 may not deform, so that the sealing effect on the accommodating chamber 121 may be maintained.

At least a portion of the sealing structure 130 can be restored to form a sealing effect, and at least a portion of the sealing structure 130 can maintain its structural size without deformation before and after being subjected to a first external force smaller than a preset value.

In some embodiments, the preset value is zero. In this manner, at least a portion of the deformation will maintain a sealing effect against the channel 140 in the absence of an external force.

In some embodiments, the channel 140 is not in communication with the external environment, thereby preventing the electrolyte from leaking out of the channel 140. Thus, the introduction effect of the channel 140 on the electrolyte can be ensured.

In certain embodiments, at least partially constructed of an elastic material. Thus, the deformation effect of the sealing structure 130 can be conveniently realized.

In one embodiment, the deformable portion of the sealing structure 130 may be made of rubber.

Referring to fig. 2 and 3, in some embodiments, under the condition that the channel 140 is formed in the battery 100, the electrolyte is introduced into the accommodating cavity 121 by applying a second external force to the electrolyte.

Thus, the function of leading the electrolyte into the accommodating cavity 121 can be realized.

Specifically, referring to fig. 2 and fig. 3, when the force application device 200 extends into the accommodating cavity 121, the directions a1 and a2 correspond to the longitudinal direction of the force application device 200. Applying the second external force to the electrolyte can make the electrolyte flow into the accommodating cavity 121 through the force application device 200 along the direction a 2. In one embodiment, the force applying device 200 may include a piston (not shown) and a reservoir (not shown), and the electrolyte may be stored in the reservoir, and by applying a second external force to the piston, the electrolyte in the reservoir may be squeezed, so as to drive the electrolyte to flow into the accommodating cavity 121 along the direction a 2.

Referring to fig. 3, in some embodiments, under the condition that at least a portion of the sealing structure is deformed by the first external force, a liquid injection channel 210 communicating with the accommodating cavity 121 can be formed in the sealing structure 130, and at least a portion of the liquid injection channel 210 is surrounded by the channel 140.

Therefore, the electrolyte can be conveniently led into the accommodating cavity 121.

Specifically, in one embodiment, force applying device 200 may be a needle of an injection configuration. The channel 140 corresponds to the second through hole 131. The needle has a fluid injection channel 210 therein. Under the condition that the force application device 200 extends into the accommodating cavity 121, the force application device 200 forms a penetration to the sealing structure 130, so that the liquid injection channel 210 inside the force application device 200 is formed in the sealing structure 130. Under the condition that the electrolyte is driven to flow into the accommodating cavity 121 along the direction a2, the electrolyte can flow into the accommodating cavity 121 along the liquid injection channel 210, so as to facilitate the introduction of the electrolyte into the accommodating cavity 121.

Referring to fig. 4, in some embodiments, the housing 120 includes a shell 123 and an end cap 124. The housing 123 and the end cap 124 are sealingly connected. The seal structure 130 is located on the end cap 124. The channel 140 is formed on the end cap 124 side.

In this manner, a specific structure of the housing 120 can be realized.

Specifically, in the embodiment shown in fig. 4, the end cap 124 is located on the side of the housing 120 facing the B1 direction, and the case 123 is located on the side of the housing 120 facing the B2 direction. The housing 123 and the end cap 124 have a joint 125 therebetween, and the housing 123 and the end cap 124 are sealingly connected at the joint 125. The seal structure 130 is located on the end cap 124 in the direction B1. Since the housing 120 is formed by the housing 123 and the end cap 124 being hermetically connected, the housing 120 does not need to be designed as an integral structure, and the formation of the sealing structure 130 and the channel 140 on the end cap 124 is facilitated. Wherein the housing 123 and the end cap 124 can be hermetically connected by adhesion at the connection 125.

Referring to fig. 5, in some embodiments, the end cap 124 includes a first end cap 126 and a second end cap 127. The first and second end caps 126 and 127 are located at both ends of the housing 123, respectively. One end cap 124 of the first end cap 126 and the second end cap 127 has a pour spout 150. The passage 140 is formed in one of the end caps 124 having a pour hole 150.

In this manner, a specific structure of the housing 120 can be realized.

Specifically, in the embodiment shown in fig. 4, the first end cap 126 is located at one end of the housing 120 facing the direction B1, and the second end cap 127 is located at one end of the housing 120 facing the direction B2. In FIG. 4, the pour spout 150 is provided in the first end cap 126, although it will be appreciated that in other embodiments, the pour spout 150 may be provided in the second end cap 127. The sealing structure 130 is disposed in the pour hole 150. In the event that the sealing structure 130 is subjected to a first external force, the sealing structure 130 may deform within the pour hole 150, thereby forming the passage 140 within the pour hole 150.

Referring to FIG. 5, in some embodiments, the housing 120 has a pour hole 150 for injecting an electrolyte into the housing 120. In the case where the seal structure 130 is deformed to a degree greater than the preset deformation degree, at least a portion of the pour hole 150 forms the passage 140.

In this manner, the formation of the channel 140 may be facilitated.

Specifically, in one embodiment, the sealing structure 130 may deform to a corresponding degree according to the strength of the first external force. Under the condition that first external force is greater than predetermined dynamics, seal structure 130 can directly break away from notes liquid hole 150 to lose the sealed effect to notes liquid hole 150, and then can follow the leading-in electrolyte of the hole orientation of notes liquid hole 150 in to holding chamber 121. The electrolyte can be introduced through a needle, so that part of the structure of the injection hole 150 forms the passage 140, or the electrolyte can be directly poured into the accommodating cavity 121 from the injection hole 150, so that the injection hole 150 forms the passage 140 as a whole.

Referring to FIG. 5, in some embodiments, the housing 120 has a pour hole 150 for injecting an electrolyte into the housing 120. The sealing structure 130 can seal and seal the liquid inlet 150 before being deformed by the first external force. When the sealing structure 130 is deformed by the first external force, the passage 140 can be formed between the sealing structure 130 and the sidewall of the pour hole 150.

In this manner, the formation of the channel 140 may be facilitated.

Specifically, in one embodiment, in the event that the sealing structure 130 is subjected to a first external force, the sealing structure 130 may be deformed within the pour hole 150 such that a space is created between the inner sidewall of the pour hole 150 and the sealing structure 130, thereby forming the channel 140 by the space.

In some embodiments, the housing 120 has a pour hole 150 for injecting electrolyte into the housing 120. The sealing structure 130 is capable of sealing the pour hole 150 before being deformed by the first external force. In a case where the sealing structure 130 is deformed by a first external force, the passage 140 can be formed in the sealing structure 130.

In this manner, the formation of the channel 140 may be facilitated.

Specifically, referring to fig. 3, in an embodiment, when the sealing structure 130 is subjected to a first external force, a recess may be formed on the sealing structure 130, the recess may finally form a second through hole 131 communicating with the accommodating cavity 121, and the electrolyte may be introduced into the accommodating cavity 121 through the second through hole 131, so that the second through hole 131 may form a channel 140, and then the channel 140 may be formed in the sealing structure 130.

Referring to fig. 1, a method for injecting an electrolyte according to an embodiment of the present invention is applied to a battery 100. The battery 100 includes a cell 110, a casing 120, and a sealing structure 130. The housing 120 has a receiving cavity 121 therein. At least part of the battery cell 110 is located in the accommodating cavity 121. The sealing structure 130 forms a sealing effect of the seal accommodating chamber 121 on the housing 120.

Referring to fig. 6, the liquid injection method includes:

01: applying a first external force to at least a portion of the sealing structure 130, at least a portion of which is deformable under the first external force, the cell 100 being capable of forming a channel 140 under the at least partially deformed condition;

02: directing the electrolyte to flow along channels 140 into cell 100.

In the electrolyte injection method according to the embodiment of the present invention, a portion of the sealing structure 130 may deform when subjected to a first external force, so that a channel 140 is formed on the battery 100, and the electrolyte may be injected into the battery 100 along the channel 140. When the sealing structure 130 is not subjected to the first external force, the channel 140 is not formed on the battery 100 due to the deformation of the sealing structure 130, which is beneficial to sealing the inside of the battery 100 and preventing the electrolyte inside the battery 100 from leaking.

Specifically, please refer to fig. 2 and fig. 3, wherein at least a portion of the sealing structure 130 to which the first external force is applied may be a portion where the sealing structure 130 and the first through hole 122 are attached to each other, or may be an interior of the sealing structure 130. In the case where the first external force is applied to the portion where the sealing structure 130 and the first through hole 122 are attached to each other, the sealing structure 130 and the first through hole 122 may be gradually spaced apart from each other, thereby forming the passage 140 between the sealing structure 130 and the first through hole 122. In the case where the surface of the sealing structure 130 is applied with the first external force, the surface of the sealing structure 130 may be deformed into the sealing structure 130, and thus the channel 140 may be formed in the interior of the sealing structure 130. After the channel 140 is formed, the electrolyte may be introduced into the accommodating chamber 121 from the channel 140.

The electrolyte injection method according to the embodiment of the present invention may be implemented by an electrolyte injection apparatus (not shown) according to the embodiment of the present invention. In particular, the priming device may be used to: applying a first external force to at least a portion of the sealing structure 130, at least a portion of which is deformable under the first external force, the cell 100 being capable of forming a channel 140 under the at least partially deformed condition; directing the electrolyte to flow along channels 140 into cell 100.

In one embodiment, referring to fig. 2 and fig. 3, the liquid injection device may form a channel 140 at a position of the housing 120 corresponding to the sealing structure 130 through the force application device 200, and then may inject the electrolyte into the accommodating cavity 121 through the channel 140 through a corresponding injection structure, so as to replenish the electrolyte of the battery 100.

In the liquid injection device according to the embodiment of the present invention, a portion of the sealing structure 130 may deform when subjected to a first external force, so that a channel 140 is formed on the battery 100, and the electrolyte may be injected into the battery 100 along the channel 140. When the sealing structure 130 is not subjected to the first external force, the channel 140 is not formed on the battery 100 due to the deformation of the sealing structure 130, which is beneficial to sealing the inside of the battery 100 and preventing the electrolyte inside the battery 100 from leaking.

In certain embodiments, step 02 (directing the flow of electrolyte along channel 140 into cell 100) comprises:

a second external force is applied to the electrolyte, so that the electrolyte is introduced into the accommodating cavity 121.

The electrolyte injection method according to the embodiment of the present invention can be realized by the electrolyte injection device according to the embodiment of the present invention. In particular, the priming device may be used to: a second external force is applied to the electrolyte, so that the electrolyte is introduced into the accommodating cavity 121.

Specifically, in a case where the formation of the channel 140 is completed, the liquid injection device may apply a second external force to the electrolyte, so that the electrolyte is driven by the second external force to be introduced into the accommodating cavity 121 from the external environment of the battery 100 along the direction of the channel 140, thereby implementing the introduction of the electrolyte into the accommodating cavity 121.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. They may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery, comprising:

an electric core;

the battery comprises a shell, a battery core and a battery cover, wherein the shell is internally provided with a containing cavity, and at least part of the battery core is positioned in the containing cavity;

a sealing structure forming a sealing effect on the housing to seal the receiving cavity, the sealing structure being configured to deform at least a portion of the sealing structure under application of a first external force and to enable the cell to form a channel under the at least partially deformed condition, the channel being operable to guide an electrolyte to flow into the cell.

2. The battery of claim 1, wherein the at least part of the deformation is recoverable to create the sealing effect in the event that the first external force is less than a preset value.

3. The battery of claim 2, wherein the predetermined value is zero.

4. The battery of claim 1, wherein the passageway is not in communication with an external environment.

5. The battery of claim 1, wherein the at least portion is constructed of an elastomeric material.

6. The battery of claim 1, wherein the electrolyte is introduced into the receiving cavity by applying a second external force to the electrolyte under conditions in which the channel is formed by the battery.

7. The battery of claim 1, wherein a liquid injection channel communicating with the accommodating cavity is formed in the sealing structure under the condition that the at least part of the liquid injection channel is deformed by the first external force, and at least part of the liquid injection channel is surrounded by the channel.

8. The cell defined in claim 1, wherein the housing comprises a shell and end caps, the shell and end caps being in sealed connection, the seal being located on the end caps, the channel being formed on the end cap side.

9. The cell defined in claim 8, wherein the end caps include a first end cap and a second end cap, the first end cap and the second end cap being located at both ends of the case, respectively, one of the first end cap and the second end cap having a pour hole, the passage being formed in the one end cap having the pour hole.

10. The battery of claim 1, wherein the housing has a fill hole for injecting electrolyte into the housing, and at least a portion of the fill hole forms the passage in the case where the seal structure is deformed to a degree greater than a preset deformation degree.

11. The battery according to claim 1, wherein the case has a liquid injection hole for injecting an electrolyte into the case, and the sealing structure is capable of plugging and sealing the liquid injection hole before being deformed by the first external force;

and under the condition that the sealing structure is deformed by the first external force, the channel can be formed between the sealing structure and the side wall of the liquid injection hole.

12. The battery according to claim 1, wherein the case has a liquid injection hole for injecting an electrolyte into the case, and the sealing structure is capable of plugging and sealing the liquid injection hole before being deformed by the first external force;

the channel can be formed in the seal structure under the condition that the seal structure is deformed by the first external force.

13. A method for injecting an electrolyte into a battery, the method comprising:

an electric core;

the sealing structure forms a sealing effect of sealing the accommodating cavity on the shell;

the liquid injection method comprises the following steps:

applying a first external force to at least a portion of the sealing structure, the at least a portion being capable of deforming under the application of the first external force, the cell being capable of forming a channel under the at least partially deformed condition;

directing the electrolyte to flow into the cell along the channel.

14. The injection method according to claim 13, wherein the at least part capable of being deformed is recoverable to form the sealing effect in a case where the first external force is less than a preset value.

15. The electrolyte injection method according to claim 13, wherein the step of guiding the electrolyte along the channel into the battery comprises:

and applying a second external force to the electrolyte so as to lead the electrolyte into the accommodating cavity.

16. The liquid injection method according to claim 13, wherein the case has a liquid injection hole for injecting the electrolyte into the case, and the sealing structure is capable of plugging and sealing the liquid injection hole before being deformed by the first external force;

17. The liquid injection method according to claim 13, wherein the case has a liquid injection hole for injecting the electrolyte into the case, and the sealing structure is capable of plugging and sealing the liquid injection hole before being deformed by the first external force;

under the condition that the sealing structure is deformed by the first external force, the channel can be formed in the sealing structure.

18. A liquid injection apparatus for injecting an electrolyte into a battery, the battery comprising:

an electric core;

the liquid injection equipment is used for:

applying a first external force to at least a portion of the sealing structure, the at least a portion being deformable under the first external force, the cell being capable of forming a channel under the at least partially deformed condition;

directing the electrolyte to flow into the cell along the channel.