IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0073378
(2002-02-08)
|
발명자
/ 주소 |
|
대리인 / 주소 |
Westman, Champlin & Kelly, P.A.
|
인용정보 |
피인용 횟수 :
81 인용 특허 :
246 |
초록
▼
Testing apparatus senses the time-varying electrical response of an electrochemical cell/battery to time-varying electrical excitation. The cell/battery may, or may not, be in service. Computation circuitry responsive to the time-varying electrical response evaluates elements of a unique circuit mod
Testing apparatus senses the time-varying electrical response of an electrochemical cell/battery to time-varying electrical excitation. The cell/battery may, or may not, be in service. Computation circuitry responsive to the time-varying electrical response evaluates elements of a unique circuit model representation of the cell/battery. Performance parameters and physical parameters are computed from these element values. Computed performance parameters include, but are not limited to, “total storage capacity”, “absolute stored charge”, “state-of-charge”, “absolute cranking current”, “fully charged cranking current”, and “state-of-health”. Computed physical parameters include, but are not limited to, “exchange current”, “maximum exchange current”, “charge transfer conductance”, “maximum charge transfer conductance”, “double layer capacitance”, and “maximum double layer capacitance”. Computed parameters are either displayed to the user, employed to initiate an alarm, or used to control a process such as charging the cell/battery.
대표청구항
▼
Testing apparatus senses the time-varying electrical response of an electrochemical cell/battery to time-varying electrical excitation. The cell/battery may, or may not, be in service. Computation circuitry responsive to the time-varying electrical response evaluates elements of a unique circuit mod
Testing apparatus senses the time-varying electrical response of an electrochemical cell/battery to time-varying electrical excitation. The cell/battery may, or may not, be in service. Computation circuitry responsive to the time-varying electrical response evaluates elements of a unique circuit model representation of the cell/battery. Performance parameters and physical parameters are computed from these element values. Computed performance parameters include, but are not limited to, “total storage capacity”, “absolute stored charge”, “state-of-charge”, “absolute cranking current”, “fully charged cranking current”, and “state-of-health”. Computed physical parameters include, but are not limited to, “exchange current”, “maximum exchange current”, “charge transfer conductance”, “maximum charge transfer conductance”, “double layer capacitance”, and “maximum double layer capacitance”. Computed parameters are either displayed to the user, employed to initiate an alarm, or used to control a process such as charging the cell/battery. ion).42. On an integrated circuit, the structure of claim 40 wherein at
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