Battery and electrical device having said battery

An electrical device and battery technology, applied in the field of electrochemistry, can solve the problems of lithium battery safety, battery overheating performance decline, circuit reliability deterioration, etc., to improve the safety performance, improve thermal conductivity, and reduce heat accumulation. Effect

Active Publication Date: 2022-06-03
DONGGUAN NVT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as users continue to pursue the performance of electronic equipment, new requirements are put forward for the fast charging of lithium-ion batteries as the power source of electronic products, and support for higher power output, which will impose new requirements on the management circuit of lithium batteries. High efficiency and stable reliability pose huge challenges
When the lithium battery management circuit needs to carry more power, the heating of the battery cell and components will lead to poor user experience and poor thermal stability of the circuit, resulting in a decrease in battery overheating performance, poor circuit reliability or even damage, which is more likely to cause The occurrence of lithium battery safety problems

Method used

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  • Battery and electrical device having said battery
  • Battery and electrical device having said battery
  • Battery and electrical device having said battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0084] ginseng Figure 5 , the electrical device 1 includes a battery 10 and an external component 14 .

[0085] ginseng figure 1 , A battery 10 includes a battery cell 11 , a first circuit board assembly 12 and a second circuit board assembly 13 .

[0086] ginseng figure 2 , image 3 and Figure 4 , the battery core 11 includes an electrode assembly 111 , a housing 112 for accommodating the electrode assembly 111 , a first tab 113 , a second tab 114 and a third tab 115 .

[0087] Wherein, the battery core 11 further includes an electrolyte solution (not shown in the figure). The electrolyte is accommodated in the casing 112 .

[0088] ginseng Figure 4 , the electrode assembly 111 includes a first pole piece 1111 and a second pole piece 1112 . The first pole piece 1111 and the second pole piece 1112 are laminated or rolled to form the electrode assembly 111 . Of course, the electrode assembly 111 may further include a separator 1113 . The isolation film 1113 is loc...

Embodiment 12

[0108] ginseng Image 6 , Figure 7 , Figure 8 and Figure 9 The difference between the embodiment 1.2 and the embodiment 1.1 lies in the number of the first tab 113 , the second tab 114 , the first electrical connection piece 122 and the third electrical connection piece 132 .

[0109] ginseng Image 6 , Figure 7 and Figure 8 , in Embodiment 1.2, the battery cell 11 includes two first tabs 113 and two second tabs 114 . The surface of the first circuit board 121 facing the cell 11 is provided with two first electrical connectors 122 , and the surface of the second circuit board 131 facing the cell 11 is provided with two third electrical connectors 132.

[0110] In Example 1.2, the first pole piece 1111 is a positive pole piece, the second pole piece 1112 is a negative pole piece, the corresponding first pole tab 113 is a positive pole tab, the second pole tab 114 and the The triode 115 is a negative electrode. Wherein, compared with Embodiment 1.1, the battery cel...

Embodiment 21

[0117] ginseng Figure 13 , the electrical device 2 includes a battery 20 and an external component 14 .

[0118] ginseng Figure 10 , a battery 20 includes a battery cell 11 , a first circuit board assembly 12 and a second circuit board assembly 13 .

[0119] ginseng Figure 11 and Figure 12 , the battery core 11 includes an electrode assembly 111 , a casing 112 for accommodating the electrode assembly 111 , a first tab 113 and a second tab 114 .

[0120] Wherein, the battery core 11 further includes an electrolyte solution (not shown in the figure). The electrolyte is accommodated in the casing 112 .

[0121] ginseng Figure 4 , the electrode assembly 111 includes a first pole piece 1111 and a second pole piece 1112 . The first pole piece 1111 and the second pole piece 1112 are laminated or rolled to form the electrode assembly 111 . Of course, the electrode assembly 111 may further include a separator 1113 . The isolation film 1113 is located between the first pol...

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Abstract

The application provides a battery, including a battery cell, a first circuit board assembly and a second circuit board assembly. The electric core includes an electrode assembly, a casing for accommodating the electrode assembly, one or more first tabs, one or more second tabs with different polarities from the first tabs, and A third lug with a different polarity from the first lug. The housing includes a first surface and a second surface facing away from the first surface. The shell is a metal shell. The electrode assembly includes a first pole piece and a second pole piece. The first tab is electrically connected to the first pole piece and exposed to the first surface. The second tab is electrically connected to the second pole piece and exposed to the second surface. The third tab is electrically connected to the second pole piece and exposed to the first surface. The first circuit board assembly is electrically connected to the first tab and the third tab. The second circuit board assembly is electrically connected to the second tab. The present application also provides an electric device with the battery.

Description

technical field [0001] The present application relates to the field of electrochemistry, and in particular, to a battery and an electrical device having the battery. Background technique [0002] Lithium-ion batteries are widely used in portable electronic devices such as mobile phones, digital cameras, and laptop computers due to their high energy density, high reliability, high cycle times, and long storage time. However, with the continuous pursuit of the performance of electronic equipment by users, new requirements have been put forward for the fast charging of lithium-ion batteries as the power source of electronic products and the support of higher power output, which will affect the performance of lithium battery management circuits. High efficiency and stable reliability pose huge challenges. When the lithium battery management circuit needs to carry more power, the heating of cells and components will lead to poor user experience and poor thermal stability of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0525H01M50/50H01M50/531H01M10/058
CPCH01M10/0525H01M10/058H01M50/50H01M50/531Y02P70/50
Inventor 韦天华陈妮妮李超鹏刘雪峰
Owner DONGGUAN NVT TECH
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