A battery and an electronic device
A technology of electronic equipment and batteries, which is applied in the electronic field, can solve problems such as metal crystals that are prone to occur, and achieve the effect of protecting batteries
Active Publication Date: 2019-03-08
LENOVO (BEIJING) LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention provides a battery and an electronic device to solve the technical problem in the prior art that if the charging current is greater than the maximum current that the battery can withstand, metal crystallization is prone to occur
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] The embodiment of the present invention provides a battery and an electronic device to solve the technical problem in the prior art that metal crystallization tends to occur when the charging current is greater than the maximum current that the battery can withstand.
[0043] In order to solve the above technical problems, the general idea of the technical solution in the embodiments of the present invention is as follows:
[0044] In the technical solution of the present invention, a negative electrode sheet, a first metal sheet, a first separator, a positive electrode sheet and a second separator are provided on the winding core part of the battery cell, when the first When the voltage between the metal sheet and the negative electrode sheet is greater than or equal to the predetermined voltage threshold, the protection circuit board in the battery generates a response protection processing mechanism to prevent the generation of crystallization of the negative electr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a battery and electronic equipment. The battery includes: an electric core, the electric core includes a winding core and a sealing film, the sealing film wraps the winding core, and the winding core is a negative electrode sheet, a first metal sheet, a first separator, a positive electrode sheet and a second separator The films are rolled together according to the circumference; the first metal sheet layer and the negative electrode sheet layer are used to generate voltage; the protection circuit board is connected to the first metal sheet layer and the negative electrode sheet layer for obtaining voltage, based on the The voltage and the predetermined voltage threshold determine whether the voltage is greater than or equal to the predetermined voltage threshold, and when the voltage is greater than or equal to the predetermined voltage threshold, a response protection treatment mechanism is generated to prevent the generation of negative electrode sheet crystallization. The battery determines whether to generate a response protection treatment mechanism based on the relationship between the voltage between the negative electrode sheet and the first metal sheet and a predetermined voltage threshold, and the response protection treatment mechanism can be used to prevent crystallization on the negative electrode sheet.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a battery and electronic equipment. Background technique [0002] In modern society, people use electronic devices more and more widely, especially electronic devices capable of fast charging, such as smart phones, tablet computers, etc., have brought many conveniences to people's lives. The fast charging method of the battery in the current technology mostly adopts high current charging, which needs to detect the maximum current that the battery can withstand in advance, and make the charging current as close as possible to the maximum current that the battery can withstand during the charging process. [0003] In the process of realizing the technical solutions in the embodiments of the present application, the inventors of the present application found that the following technical problems exist in the prior art: because the internal resistance of the protection circuit in...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/04H01M10/42
CPCH02J7/0086H01M10/04H01M10/4235H02J7/00H02J7/0029H02J7/00304Y02E60/10Y02P70/50
Inventor 黄保宁
Owner LENOVO (BEIJING) LTD