CN217983453U - High-safety coiled lithium ion battery - Google Patents

High-safety coiled lithium ion battery Download PDF

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Publication number
CN217983453U
CN217983453U CN202221852407.3U CN202221852407U CN217983453U CN 217983453 U CN217983453 U CN 217983453U CN 202221852407 U CN202221852407 U CN 202221852407U CN 217983453 U CN217983453 U CN 217983453U
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China
Prior art keywords
lithium ion
ion battery
protection circuit
negative pole
over
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Active
Application number
CN202221852407.3U
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Chinese (zh)
Inventor
邓旭东
易宏亮
王维新
邱鸿杰
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Shenzhen Data Energy Technology Co ltd
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Shenzhen Data Energy Technology Co ltd
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Priority to CN202221852407.3U priority Critical patent/CN217983453U/en
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Abstract

The utility model discloses a high security roll core lithium ion battery, including lithium ion battery and protective housing, lithium ion battery locates the protective housing inboard, the protective housing inboard is equipped with places the chamber, it is equipped with overdischarge protection circuit and overcharge protection circuit to place the intracavity, overdischarge protection circuit and overcharge protection circuit all with lithium ion battery electric connection, overdischarge protection circuit and overcharge protection circuit constitute by comparison module and switch module; the over-charge protection circuit and the over-discharge protection circuit which are simultaneously in control connection with the lithium ion battery are arranged, so that the over-charge and over-discharge of the lithium ion battery are avoided, on one hand, the explosion caused by the over-charge can be avoided, and on the other hand, the service life of the lithium ion battery can be prolonged.

Description

High-safety roll core lithium ion battery
Technical Field
The utility model relates to a lithium ion battery field especially relates to a core lithium ion battery is rolled up to high security.
Background
The lithium ion battery is a secondary battery which takes a lithium-containing compound as a positive electrode and realizes charge and discharge through the back-and-forth separation and embedding of lithium ions between the positive electrode and the negative electrode of the battery in the charge and discharge process. The lithium ion battery is mainly composed of a positive electrode, a negative electrode, an electrolyte and a diaphragm.
The lithium ion battery has the problems of intolerance of overcharge and intolerance of overdischarge, when overcharged, excessively inserted lithium ions can be permanently fixed in crystal lattices and can not be released, when overdischarged, electrodes are subjected to excessive lithium ion deintercalation, the crystal lattices can be collapsed, the service life is shortened, and meanwhile, potential safety hazards of explosion can exist due to overcharge.
Therefore, a high-safety coiled lithium ion battery capable of preventing overcharge and overdischarge is provided.
Disclosure of Invention
In order to overcome the not enough of prior art scheme, the utility model provides a pair of core lithium ion battery is rolled up to high security can solve the problem that the background art provided.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a high security rolls up core lithium ion battery, includes lithium ion battery and protective housing, lithium ion battery locates the protective housing inboard, the protective housing inboard is equipped with places the chamber, it is equipped with overdischarge protection circuit and overcharge protection circuit to place the intracavity, overdischarge protection circuit and overcharge protection circuit all with lithium ion battery electric connection, overdischarge protection circuit and overcharge protection circuit constitute by comparison module and switch module.
Furthermore, the protective shell is provided with a battery jar in a concave manner, the upper end and the lower end of the inner side of the battery jar are respectively provided with a first conducting strip and a second conducting strip, the lithium ion battery is arranged in the battery jar, the two ends of the lithium ion battery are respectively connected with the first conducting strip and the second conducting strip in an abutting manner, and one ends of the first conducting strip and the second conducting strip are electrically connected with the over-discharge protection circuit and the over-charge protection circuit;
further, a protective cover plate is arranged above the battery jar, and an arc-shaped limiting part is arranged in the battery jar;
furthermore, an electricity meter is arranged at one end of the protective shell, and the electricity meter is embedded in the rear end face of the protective shell and is electrically connected with the lithium ion battery;
further, lithium ion battery comprises shell, positive plate, negative pole piece and barrier film, positive plate and negative pole piece are convoluteed each other, the barrier film is located between positive plate and the negative pole piece, the upper end of positive plate is equipped with anodal ear, the lower extreme of negative pole piece is equipped with the negative pole ear, anodal ear and negative pole ear run through respectively the last lower extreme of shell.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a core lithium ion battery is rolled up to high security sets up simultaneously with lithium ion battery control connection's overcharge protection circuit and overdischarge protection circuit, avoids lithium ion battery to take place to overcharge and overdischarge, can avoid the explosion that arouses because of overcharging on the one hand, and on the other hand can prolong lithium ion battery's life.
Drawings
Fig. 1 is a schematic view of a first overall structure of the present invention;
fig. 2 is a schematic view of a second overall structure of the present invention.
Reference numbers in the figures: 1-a lithium ion battery; 2-protective shell; 3-placing the cavity; 4-an over-discharge protection circuit; 5-an overcharge protection circuit; 6-battery jar; 7-a first conductive sheet; 8-a second conductive sheet; 9-electricity meter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The following detailed description of the high-safety roll core lithium ion battery of the present invention is made with reference to fig. 1-2:
the utility model provides a high security rolls up core lithium ion battery 1, includes lithium ion battery 1 and protective housing 2, lithium ion battery 1 is located 2 inboards of protective housing, 2 inboards of protective housing are equipped with place chamber 3, it is equipped with overdischarge protection circuit 4 and overcharge protection circuit 5 in the chamber 3 to place, overdischarge protection circuit 4 and overcharge protection circuit 5 all with lithium ion battery 1 electric connection, overdischarge protection circuit 4 and overcharge protection circuit 5 constitute by comparison module and switch module.
Preferably, the protective casing 2 is concavely provided with a battery jar 6, the upper end and the lower end of the inner side of the battery jar 6 are respectively provided with a first conducting strip 7 and a second conducting strip 8, the lithium ion battery 1 is arranged in the battery jar 6, the two ends of the lithium ion battery are respectively connected with the first conducting strip 7 and the second conducting strip 8 in an abutting manner, and one ends of the first conducting strip 7 and the second conducting strip 8 are electrically connected with the over-discharge protection circuit 4 and the over-charge protection circuit 5;
preferably, a protective cover plate is arranged above the battery jar 6, and an arc-shaped limiting part is arranged in the battery jar 6;
preferably, an electricity meter 9 is arranged at one end of the protective shell 2, the electricity meter 9 is embedded in the rear end face of the protective shell 2 and is electrically connected with the lithium ion battery 1, and the electricity meter 9 can monitor the electric quantity of the lithium ion battery 1 in real time;
preferably, lithium ion battery 1 comprises shell, positive plate, negative pole piece and barrier film, positive plate and negative pole piece are convoluteed each other, the barrier film is located between positive plate and the negative pole piece, the upper end of positive plate is equipped with positive tab, the lower extreme of negative pole piece is equipped with the negative pole ear, positive tab and negative pole ear run through respectively the last lower extreme of shell.
The working principle is as follows: the over-discharge protection circuit 4 and the over-charge protection circuit 5 are respectively preset with an over-discharge voltage threshold and an over-charge voltage threshold; when the measured voltage is greater than the overcharge voltage threshold, determining that the voltage is overcharged; when the actual measurement voltage is smaller than the over-discharge voltage threshold value, determining that the over-discharge is performed;
the over-discharge protection circuit 4 and the over-charge protection circuit 5 are both electrically connected with the lithium ion battery 1, the comparison module compares the measured voltage with a voltage threshold, and when the over-discharge or the over-charge is determined, the switch module disconnects the load from the lithium ion battery 1.
To sum up, the utility model discloses a core lithium ion battery is rolled up to high security sets up simultaneously with lithium ion battery control connection's overcharge protection circuit and overdischarge protection circuit, avoids lithium ion battery to take place to overcharge and overdischarge, can avoid the explosion that arouses because of overcharging on the one hand, and on the other hand can prolong lithium ion battery's life.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a high security rolls up core lithium ion battery, its characterized in that, includes lithium ion battery and protective housing, lithium ion battery locates the protective housing inboard, the protective housing inboard is equipped with places the chamber, it is equipped with overdischarge protection circuit and overcharge protection circuit to place the intracavity, overdischarge protection circuit and overcharge protection circuit all with lithium ion battery electric connection, overdischarge protection circuit and overcharge protection circuit constitute by comparison module and switch module.
2. The high-safety roll core lithium ion battery of claim 1, characterized in that: the lithium ion battery is arranged in the battery tank, two ends of the lithium ion battery are respectively connected with the first conducting strip and the second conducting strip in an abutting mode, and one ends of the first conducting strip and the second conducting strip are electrically connected with the over-discharge protection circuit and the over-charge protection circuit.
3. The high-safety roll core lithium ion battery of claim 2, characterized in that: a protective cover plate is arranged above the battery jar, and an arc-shaped limiting part is arranged in the battery jar.
4. The high-safety roll core lithium ion battery of claim 1, characterized in that: one end of the protective shell is provided with an electricity meter, and the electricity meter is embedded in the rear end face of the protective shell and electrically connected with the lithium ion battery.
5. The high-safety roll core lithium ion battery of claim 1, characterized in that: the lithium ion battery comprises shell, positive plate, negative pole piece and barrier film, positive plate and negative pole piece are convoluteed each other, the barrier film is located between positive plate and the negative pole piece, the upper end of positive plate is equipped with anodal ear, the lower extreme of negative pole piece is equipped with the negative pole ear, anodal ear and negative pole ear run through respectively the last lower extreme of shell.
CN202221852407.3U 2022-07-18 2022-07-18 High-safety coiled lithium ion battery Active CN217983453U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221852407.3U CN217983453U (en) 2022-07-18 2022-07-18 High-safety coiled lithium ion battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221852407.3U CN217983453U (en) 2022-07-18 2022-07-18 High-safety coiled lithium ion battery

Publications (1)

Publication Number Publication Date
CN217983453U true CN217983453U (en) 2022-12-06

Family

ID=84279232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221852407.3U Active CN217983453U (en) 2022-07-18 2022-07-18 High-safety coiled lithium ion battery

Country Status (1)

Country Link
CN (1) CN217983453U (en)

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