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Battery and electric device with battery

A technology for electrical devices and batteries, which is applied in the field of electrochemistry, can solve the problems of lithium battery safety, battery overheating performance degradation, and circuit reliability deterioration, etc., to improve the safety performance of use, improve thermal conductivity, and reduce heat accumulation. Effect

Active Publication Date: 2020-07-10
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 electric device with battery
  • Battery and electric device with battery
  • Battery and electric device with 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 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 cell 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 cell 11 further includes an electrolyte (not shown in the figure). The electrolyte solution 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 wound to form the electrode assembly 111 . Certainly, the electrode assembly 111 may further include a separator 1113 . The isolation film 1113 is located between the ...

Embodiment 12

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

[0109] ginseng Figure 6 , Figure 7 and Figure 8 , in the 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 electric core 11 is provided with two first electrical connectors 122 , and the surface of the second circuit board 131 facing the electric core 11 is provided with two third electrical connectors. 132.

[0110] In Example 1.2, the first pole piece 1111 is a positive pole piece, and the second pole piece 1112 is a negative pole piece, then the corresponding first pole piece 113 is a positive pole piece, and the second pole piece 114 and the second pole piece 1112 are negative pole pieces. The three-pole tab 115 i...

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 cell 11 , a first circuit board assembly 12 and a second circuit board assembly 13 .

[0119] ginseng Figure 11 and Figure 12 , the battery cell 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 cell 11 further includes an electrolyte (not shown in the figure). The electrolyte solution 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 wound to form the electrode assembly 111 . Certainly, the electrode assembly 111 may further include a separator 1113 . The isolation film 1113 is located between the first pole piece 1111 and ...

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Abstract

The invention provides a battery. The battery comprises a battery cell, a first circuit board assembly and a second circuit board assembly; and the battery cell comprises an electrode assembly, a shell for accommodating the electrode assembly, one or more first tabs, one or more second tabs with the polarity different from that of the first tabs, and third tabs with the polarity different from that of the first tabs. The shell comprises a first surface and a second surface opposite to the first surface. The shell is a metal shell. The electrode assembly includes a first pole piece and a secondpole piece. The first tab is electrically connected with the first pole piece and is exposed out of the first surface; and the second tab is electrically connected with the second pole piece and is exposed out of the second surface. The third tab is electrically connected with the second pole piece and is exposed out of the first surface. The first circuit board assembly is electrically connectedwith the first tab and the third tab. The second circuit board assembly is electrically connected with the second tab. The invention further provides an electric device with the battery.

Description

technical field [0001] The present application relates to the field of electrochemistry, in particular to a battery and an electrical device with the battery. Background technique [0002] Lithium-ion batteries are widely used in portable electronic devices such as mobile phones, digital cameras, and laptops due to their high energy density, high reliability, high cycle times, and long storage time. 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, resulti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M2/20H01M2/26H01M10/058
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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