Safety mechanisms for a rechargeable battery
This generally relates to one or more safety mechanisms of a rechargeable battery for light electric vehicles. The rechargeable battery may include a housing containing a battery management system and at least one battery cell, and a communication system communicatively coupled to the battery management system, where the communication system wirelessly communicates information received from the battery management system to a device external to the rechargeable battery. The rechargeable battery may include a housing formed of a first clamshell member and a second clamshell member. The rechargeable battery may include a first protrusion portion extending from an interior surface of the first clamshell member and a second protrusion portion extending from the interior surface of the second clamshell member toward the first protrusion portion such that the first and second protrusion portions physically contact one another when a force is applied to an external surface of the housing.
1 . A rechargeable battery, comprising:
at least one battery cell;
a housing containing a battery management system and the at least one battery cell;
one or more sensors of the battery management system configured to detect an unsafe condition of the rechargeable battery;
one or more power connectors configured to electrically connect the rechargeable battery to a light electric vehicle; and
a communication system communicatively coupled to the battery management system, wherein the communication system is configured to wirelessly communicate information indicative of the unsafe condition of the rechargeable battery received from the battery management system to a server via a network communication channel.
2 . The rechargeable battery of claim 1 , wherein the communication system wirelessly communicates the information while the rechargeable battery is in a charging state.
3 . The rechargeable battery of claim 1 , wherein the communication system wirelessly communicates the information to the server while the battery management system is in an inactive state.
4 . The rechargeable battery of claim 1 , wherein the battery management system determines whether the rechargeable battery is coupled to the light electric vehicle.
5 . The rechargeable battery of claim 1 , further comprising:
at least one transistor communicatively coupled to the battery management system and the at least one battery cell; and
a sensor communicatively coupled to the battery management system to measure at least one attribute associated with the rechargeable battery, wherein when the at least one attribute exceeds a predetermined threshold, the battery management system changes a state of the at least one transistor.
6 . The rechargeable battery of claim 5 , wherein the predetermined threshold has a first value when the rechargeable battery is coupled to the light electric vehicle and the predetermined threshold has a second value when the rechargeable battery is not coupled to the light electric vehicle.
7 . The rechargeable battery of claim 6 , wherein the sensor is a thermistor communicatively coupled to the battery management system to determine a temperature of one or more terminals of the rechargeable battery.
8 . The rechargeable battery of claim 1 , wherein the communication system wirelessly communicates information received from the battery management system to the server using at least one of a near-field communication (NFC) protocol.
9 . The rechargeable battery of claim 5 , wherein the predetermined threshold has a first value when the rechargeable battery is coupled to the light electric vehicle and the predetermined threshold has a second value when the rechargeable battery is coupled to a battery charging kiosk.