Abstract: The present disclosure relates to a power supply assembly and a method for manufacturing the same. The power supply assembly includes a negative electrode sheet, a separator, and a positive electrode sheet. The negative electrode sheet includes a negative tab, and the positive electrode sheet includes a positive tab, a positive electrode material covering a first foil, a first recess and a second recess. The first recess is formed by removing a positive electrode material covering a first region of the first foil and configured for receiving the positive tab, and a size of the first recess is larger than a size of the positive tab. The second recess is formed by removing a positive electrode material covering a second region of the first foil and configured for receiving the negative tab, and a size of the second recess is larger than a size of the negative tab.

Abstract: A method for obtaining a residual electric quantity of a battery in an electronic device includes: obtaining a present electric quantity variation of a battery within a present detection period; obtaining a maximum discharge electric quantity of the battery corresponding to a number of charging and discharging within the present detection period; and obtaining a present residual electric quantity of the battery based on the maximum discharge electric quantity and the present electric quantity variation.

Abstract: A silicon negative electrode sheet includes: a current collector; and at least two active coatings containing negative active materials, which are sequentially coated on the current collector. Through holes are formed on the active coating along the thickness direction and are arranged at intervals. The liquid holding capacity of the silicon negative electrode sheet and the charging capacity of a silicon negative electrode can be improved.

Abstract: The present disclosure relates to a power supply assembly and a method for manufacturing the same. The power supply assembly includes a negative electrode sheet, a separator, and a positive electrode sheet. The negative electrode sheet includes a negative tab, and the positive electrode sheet includes a positive tab, a positive electrode material covering a first foil, a first recess and a second recess. The first recess is formed by removing a positive electrode material covering a first region of the first foil and configured for receiving the positive tab, and a size of the first recess is larger than a size of the positive tab. The second recess is formed by removing a positive electrode material covering a second region of the first foil and configured for receiving the negative tab, and a size of the second recess is larger than a size of the negative tab.

Abstract: A method for obtaining a residual electric quantity of a battery in an electronic device includes: obtaining a present electric quantity variation of a battery within a present detection period; obtaining a maximum discharge electric quantity of the battery corresponding to a number of charging and discharging within the present detection period; and obtaining a present residual electric quantity of the battery based on the maximum discharge electric quantity and the present electric quantity variation.

Abstract: The present disclosure relates to a composite battery and an electronic device. The composite battery includes: an encapsulation film; and a plurality of battery cells that are connected with one another in parallel, and are encapsulated in the encapsulation film.

Abstract: A silicon negative electrode sheet includes: a current collector; and at least two active coatings containing negative active materials, which are sequentially coated on the current collector. Through holes are formed on the active coating along the thickness direction and are arranged at intervals. The liquid holding capacity of the silicon negative electrode sheet and the charging capacity of a silicon negative electrode can be improved.

Abstract: Disclosed are a protective main board for a battery cell, an electronic terminal and a method for assembling a battery cell of an electronic terminal. The protective main board for a battery cell includes a main board body and a conducting component. The main board body includes a main board circuit and a protection circuit configured to protect the battery cell, and the protection circuit is connected with the main board circuit. The conducting component is arranged on the main board body, and includes a first conducting member and a second conducting member, and the battery cell is electrically connected with the protection circuit through the first conducting member and the second conducting member respectively.

Abstract: Disclosed are a protective main board for a battery cell, an electronic terminal and a method for assembling a battery cell of an electronic terminal. The protective main board for a battery cell includes a main board body and a conducting component. The main board body includes a main board circuit and a protection circuit configured to protect the battery cell, and the protection circuit is connected with the main board circuit. The conducting component is arranged on the main board body, and includes a first conducting member and a second conducting member, and the battery cell is electrically connected with the protection circuit through the first conducting member and the second conducting member respectively.

Abstract: Disclosed are a protective main board for a battery cell, an electronic terminal and a method for assembling a battery cell of an electronic terminal. The protective main board for a battery cell includes a main board body and a conducting component. The main board body includes a main board circuit and a protection circuit configured to protect the battery cell, and the protection circuit is connected with the main board circuit. The conducting component is arranged on the main board body, and includes a first conducting member and a second conducting member, and the battery cell is electrically connected with the protection circuit through the first conducting member and the second conducting member respectively.