Lithium-ion battery and charge/discharge control method
First Claim
1. A lithium-ion battery comprising a lithium-ion cell, a positive electrode terminal, a positive/negative electrode insulation sheet, a connector and a housing;
- wherein the connector is a Flexible Printed Circuit (FPC) insulation circuit board or a metal nickel belt attached insulation papers on the surface, the housing is a negative electrode of the lithium-ion battery, the lithium-ion cell is arranged in the housing, the connector is arranged between the lithium-ion cell and the housing to connect electrodes in the lithium-ion cell, the positive electrode terminal is installed on one end of the lithium-ion cell, the positive electrode terminal and the housing are isolated and packaged by the positive/negative electrode insulation sheet, a circuit board is integrated between the lithium-ion cell and the positive electrode terminal, a voltage/current control and overcharge/over-discharge protection circuit is integrated on the circuit board, positive and negative electrodes of the lithium-ion battery are coupled to the lithium-ion cell through the voltage/current control and overcharge/over-discharge protection circuit.
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Accused Products
Abstract
A lithium-ion battery includes a lithium-ion cell, a positive electrode terminal, a positive/negative electrode insulation sheet, a connector and a housing used as a negative electrode. The lithium-ion cell is arranged in the housing, the connector is arranged between the lithium-ion cell and the housing. The positive electrode terminal is installed on one end of the lithium ion cell. A circuit board is arranged between the battery positive/negative electrode and the lithium-ion cell. A voltage/current control and overcharge/over-discharge protection circuit is integrated on the circuit board. The voltage/current control and overcharge/over-discharge protection circuit can adjust the voltage of the lithium-ion battery to be a voltage of 1.5V/1.2V. The shape and size of the housing can be designed to be any shapes to replace traditional dry batteries according to requirements. The lithium-ion battery can be designed to be using the same port to do the discharging and charging work.
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Citations
7 Claims
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1. A lithium-ion battery comprising a lithium-ion cell, a positive electrode terminal, a positive/negative electrode insulation sheet, a connector and a housing;
wherein the connector is a Flexible Printed Circuit (FPC) insulation circuit board or a metal nickel belt attached insulation papers on the surface, the housing is a negative electrode of the lithium-ion battery, the lithium-ion cell is arranged in the housing, the connector is arranged between the lithium-ion cell and the housing to connect electrodes in the lithium-ion cell, the positive electrode terminal is installed on one end of the lithium-ion cell, the positive electrode terminal and the housing are isolated and packaged by the positive/negative electrode insulation sheet, a circuit board is integrated between the lithium-ion cell and the positive electrode terminal, a voltage/current control and overcharge/over-discharge protection circuit is integrated on the circuit board, positive and negative electrodes of the lithium-ion battery are coupled to the lithium-ion cell through the voltage/current control and overcharge/over-discharge protection circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A charge/discharge control method applied in a lithium-ion battery comprising:
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a charging detection unit detecting current in circuits of the lithium-ion battery; wherein, a charging and voltage stabilization control unit stops working and a PWM voltage stabilization control unit is working to let the positive electrode terminal of the lithium-ion battery output a stable voltage when the charging detection unit detects discharging current in the circuits; wherein, the charging and voltage stabilization control unit is working and the PWM voltage stabilization control unit stops working to let a channel resistance of the MOSFET in the PWM voltage stabilization control unit stay in a minimum value when the charging detection unit detects charging current in the circuits; and when the lithium-ion battery is fully charged or a charger is pulled out, the charging detection unit, the charging and voltage stabilization control unit both stop working and the PWM voltage stabilization control unit turns on a PWM voltage stabilization mode.
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Specification