Abstract: A device and method of estimating state-of-health of a battery is provided. A device of estimating a state-of-health (SOH) of a battery includes: a memory configured to load a program for calculating a state-of-balance (SOB) value by voltage of a plurality of cells constituting the battery and estimating a state-of-health balance value which is a state-of-health value of the battery to which the state-of-balance value by voltage is applied; and a processor configured to execute instructions included in the program loaded by the memory. A device and method of estimating state-of-charge of a battery is provided. A device of estimating state-of-charge (SOC) of a battery includes: a memory configured to load a program for correcting a voltage-to-remaining capacity correlation, in which a battery voltage is matched for each remaining capacity, based on a state-of-balance value by voltage of the battery; and a processor configured to execute instructions included in the program loaded in the memory.

Abstract: Detecting a defect in a rechargeable battery includes measuring an output signal by applying an input signal to the battery while modulating frequency, calculating an AC impedance according to the frequency and the output signal, Nyquist plotting the AC impedance and building an equivalent circuit model based on the plot, calculating a product of a charge transfer resistance and an electric double layer capacitance in the model as a time constant or calculating a slope of a straight line appearing in a low-frequency region in the plot, comparing the time constant with a predetermined time constant or comparing an absolute value of the calculated slope of the straight line with a predetermined slope absolute value, and determining the battery is defective when the time constant is less than the predetermined time constant or when the absolute value of the calculated slope is smaller than the predetermined slope absolute value.

Abstract: An impedance measurement device of the present disclosure includes: an electrochemical energy device; an amplifier connected to each connection terminal of the electrochemical energy device and configured to amplify a signal introduced into a wiring; and a main board configured to receive the signal from the amplifier and measure an impedance. Accordingly, the present invention has advantages in that high resistance to electromagnetic interference may be achieved by disposing a preamplifier close to a terminal of an electrochemical energy device to amplify only the signal without amplifying a noise introduced into a wiring.

Abstract: The invention relates to ceramic granules with a high UV opacity and high solar reflectance, which is produced by forming a calcined clay mineral powder into green body and re-calcining, featured with a water absorption of 15-35%; ?97% crystalline content and 90-100% UV opacity. The invention further relates to a method for preparing ceramic granules with a high UV opacity and high solar reflectance and the use thereof for reflectance-improving application on building surface for the purpose of energy conservation.

Abstract: A system for obtaining state information of a battery may be disclosed. The system includes: at least one first harness cable for obtaining, on the basis of a CAN protocol, data indicating state information of the battery from a battery management system of the battery; an analyzer for providing a driving signal for driving the battery management system; and a first junction box for transmitting the data input through the first harness cable to the analyzer, wherein the analyzer may be configured to output the data received from the first junction box to the outside.

Abstract: Provided is a method for diagnosing a state of reusable (SOR) of a battery and, more specifically, to a method for diagnosing an SOR of a battery, the method being capable of diagnosing the overall state of a battery during battery reuse by separately diagnosing a state of health (SOH) and a state of power (SOP) of the battery. The method for diagnosing a state of reusable (SOR) of a battery according to the present invention includes: estimating a state of charge (SOC) according to a change in an open circuit voltage (OCV); estimating a state of health (SOH) by using the SOC; calculating a state of power (SOP) in consideration of an output of a current battery; and calculating the SOR by using the SOH and the SOP.

Abstract: A system for obtaining state information of a battery may be disclosed. The system includes: at least one first harness cable for obtaining, on the basis of a CAN protocol, data indicating state information of the battery from a battery management system of the battery; an analyzer for providing a driving signal for driving the battery management system; and a first junction box for transmitting the data input through the first harness cable to the analyzer, wherein the analyzer may be configured to output the data received from the first junction box to the outside.

Abstract: The invention relates to ceramic granules with a high UV opacity and high solar reflectance, which is produced by forming a calcined clay mineral powder into green body and re-calcining, featured with a water absorption of 15-35%; ?97% crystalline content and 90-100% UV opacity. The invention further relates to a method for preparing ceramic granules with a high UV opacity and high solar reflectance and the use thereof for reflectance-improving application on building surface for the purpose of energy conservation.

Abstract: Ceramic granules having high reflectivity and a preparation method for the same comprise sand core particulates and at least one coating thereon, wherein said sand core particulates contain calcined tobelite that is obtained by calcining the tobelite ore at 700-1200° C.; and said sand core particulates are coated with an inorganic coating, and then calcined at 800-1200° C. to obtain ceramic granules. Said ceramic granules have a particle size of 0.1-3.5 mm, and have a solar reflectivity SR of not lower than 80% and a staining index DL* of lower than 6%. Said ceramic granules produce a solar reflectivity of not lower than 70% when being applied to the asphalt roll/sheet and a solar reflectivity of not lower than 72% when being applied to the polyurethane foam sheet.