公开(公告)号：US20080191667A1

公开(公告)日：2008-08-14

申请号：US11705947

申请日：2007-02-12

申请人： Kent Kernahan ,  Milton D. Ribeiro ,  Dongsheng Zhou ,  Larry A. Klein

发明人： Kent Kernahan ,  Milton D. Ribeiro ,  Dongsheng Zhou ,  Larry A. Klein

IPC分类号： H02J7/00

CPC分类号： H02J7/045 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0077

摘要： A method for charging a battery is disclosed, wherein a constant current charging current is periodically adjusted as needed such that the change in battery voltage increases approximately linearly during the charging period. In some embodiments the charging is in three phases. An optional first phase charges with a low current until the battery voltages rises to a certain minimum. During a second phase a constant current is provided while the battery voltage is monitored. The second phase constant current is periodically increased if the rate of change of battery voltage is less than a predetermined value and is decreased if the rate of change of battery voltage is more than the predetermined value. When the battery voltage attains a predetermined value, a third phase begins wherein a constant voltage is applied to the battery while the battery current draw is periodically monitored. Charging is stopped when the battery current draw falls to a predetermined value or, in some embodiments, when the charging current drops to a value that is a certain percentage of the charging current at the termination of phase two.In one embodiment the battery voltage is monitored to determine a possible battery failure, for example in the case of the battery voltage decreasing during the constant current charging of phase two. In some embodiments the battery is shorted out in response to detection of a possible failure.

摘要翻译： 公开了一种用于对电池充电的方法，其中根据需要周期性地调节恒定电流充电电流，使得电池电压的变化在充电期间近似线性地增加。 在一些实施例中，充电分三个阶段。 可选的第一阶段以低电流充电直到电池电压上升到一定的最小值。 在第二阶段期间，在监视电池电压的同时提供恒定电流。 如果电池电压的变化率小于预定值，则第二相恒定电流周期性地增加，并且如果电池电压的变化率大于预定值，则第二相恒定电流会降低。 当电池电压达到预定值时，开始第三阶段，其中在电池电流消耗被周期性地监测的同时向电池施加恒定电压。 当电池电流下降到预定值时，或者在一些实施例中当充电电流下降到在阶段2结束时充电电流的一定百分比的值时，停止充电。 在一个实施例中，监视电池电压以确定可能的电池故障，例如在阶段2的恒定电流充电期间电池电压降低的情况下。 在一些实施例中，响应于可能的故障的检测，电池被短路。

公开(公告)号：US07528571B2

公开(公告)日：2009-05-05

申请号：US11688876

申请日：2007-03-21

申请人： Kent Kernahan ,  Milton D. Ribelro ,  Dongsheng Zhou ,  Larry A. Klein

发明人： Kent Kernahan ,  Milton D. Ribelro ,  Dongsheng Zhou ,  Larry A. Klein

IPC分类号： H01M10/44

CPC分类号： H02J7/045 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0077

摘要： A method for charging a battery is disclosed, wherein a constant current charging current is periodically adjusted as needed such that the change in battery voltage increases approximately linearly during the charging period. In some embodiments the charging is in three phases. An optional first phase charges with a low current until the battery voltages rises to a certain minimum. During a second phase a constant current is provided while the battery voltage is monitored. The second phase constant current is periodically increased if the rate of change of battery voltage is less than a predetermined value and is decreased if the rate of change of battery voltage is more than the predetermined value. When the battery voltage attains a predetermined value, a third phase begins wherein a constant voltage is applied to the battery while the battery current draw is periodically monitored. Charging is stopped when the battery current draw falls to a predetermined value or, in some embodiments, when the charging current drops to a value that is a certain percentage of the charging current at the termination of phase two.In one embodiment the battery voltage is monitored to determine a possible battery failure, for example in the case of the battery voltage decreasing during the constant current charging of phase two. In some embodiments the battery is shorted out in response to detection of a possible failure.

摘要翻译： 公开了一种用于对电池充电的方法，其中根据需要周期性地调节恒定电流充电电流，使得电池电压的变化在充电期间近似线性地增加。 在一些实施例中，充电分三个阶段。 可选的第一阶段以低电流充电直到电池电压上升到一定的最小值。 在第二阶段期间，在监视电池电压的同时提供恒定电流。 如果电池电压的变化率小于预定值，则第二相恒定电流周期性地增加，并且如果电池电压的变化率大于预定值，则第二相恒定电流会降低。 当电池电压达到预定值时，开始第三阶段，其中在电池电流消耗被周期性地监测的同时向电池施加恒定电压。 当电池电流下降到预定值时，或者在一些实施例中当充电电流下降到在阶段2结束时充电电流的一定百分比的值时，停止充电。 在一个实施例中，监视电池电压以确定可能的电池故障，例如在阶段2的恒定电流充电期间电池电压降低的情况下。 在一些实施例中，响应于可能的故障的检测，电池被短路。

公开(公告)号：US20080191666A1

公开(公告)日：2008-08-14

申请号：US11688876

申请日：2007-03-21

申请人： Kent Kernahan ,  Milton D. Ribelro ,  Dongsheng Zhou ,  Larry A. Klein

发明人： Kent Kernahan ,  Milton D. Ribelro ,  Dongsheng Zhou ,  Larry A. Klein

IPC分类号： H02J7/04 ,  H02J7/00

CPC分类号： H02J7/045 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0077

摘要： A method for charging a battery is disclosed, wherein a constant current charging current is periodically adjusted as needed such that the change in battery voltage increases approximately linearly during the charging period. In some embodiments the charging is in three phases. An optional first phase charges with a low current until the battery voltages rises to a certain minimum. During a second phase a constant current is provided while the battery voltage is monitored. The second phase constant current is periodically increased if the rate of change of battery voltage is less than a predetermined value and is decreased if the rate of change of battery voltage is more than the predetermined value. When the battery voltage attains a predetermined value, a third phase begins wherein a constant voltage is applied to the battery while the battery current draw is periodically monitored. Charging is stopped when the battery current draw falls to a predetermined value or, in some embodiments, when the charging current drops to a value that is a certain percentage of the charging current at the termination of phase two.In one embodiment the battery voltage is monitored to determine a possible battery failure, for example in the case of the battery voltage decreasing during the constant current charging of phase two. In some embodiments the battery is shorted out in response to detection of a possible failure.

摘要翻译： 公开了一种用于对电池充电的方法，其中根据需要周期性地调节恒定电流充电电流，使得电池电压的变化在充电期间近似线性地增加。 在一些实施例中，充电分三个阶段。 可选的第一阶段以低电流充电直到电池电压上升到一定的最小值。 在第二阶段期间，在监视电池电压的同时提供恒定电流。 如果电池电压的变化率小于预定值，则第二相恒定电流周期性地增加，并且如果电池电压的变化率大于预定值，则第二相恒定电流会降低。 当电池电压达到预定值时，开始第三阶段，其中在电池电流消耗被周期性地监测的同时向电池施加恒定电压。 当电池电流下降到预定值时，或者在一些实施例中当充电电流下降到在阶段2结束时充电电流的一定百分比的值时，停止充电。 在一个实施例中，监视电池电压以确定可能的电池故障，例如在阶段2的恒定电流充电期间电池电压降低的情况下。 在一些实施例中，响应于可能的故障的检测，电池被短路。