SYSTEM AND METHOD OF MITIGATING HIGH-TEMPERATURE, HIGH-CHARGE GAS SWELLING OF BATTERY OF PORTABLE ELECTRONIC DEVICE

• Main Authors: Patino, Joseph, Sengupta, Surajit, Brubacher, Jonathan Quinn, Feng, Yu William
• Format: Patent
• Language: English; French; German
• Published: 14.12.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

A method mitigates or even prevents gas swelling of a battery of a portable electronic device at high temperatures and states of charge of the battery. The method comprises: receiving "temperature" and "state of charge" signals, which are functions of a temperature and state of charge of the battery, respectively; determining, as corresponding functions of the "temperature" and "state of charge" signals, whether the temperature is within an elevated operating-temperature range and the state of charge is within an elevated state-of-charge range; cycle-forming the battery a predetermined number of cycles; and terminating the "cycle-forming" operation of the battery when the pre-determined number of cycles is reached.