Using quantum computers to R & D for EV battery materials (EE TIMES JAPAN) --Yahoo! News

IonQ's ion trap device source: Ionq

　Ionq and Hyundai Motor have announced that they will jointly develop a new variation quantum -specific solver method (VARIATIONAL QUANTUM EIGensolver). It can be applied to research on lithium compounds and chemical interactions in battery chemistry. VQE is an algorithm that determines the value system used to solve specific optimization issues. This algorithm calculates the time change rate of the basal state energy of the Hamiltonian and the state of the dynamic physical system using the variable principle. The existing method has a calculation limit, so there was a restriction on accuracy. Ionq and Hyundai Motor co -develop battery chemical models that can be operated on quantum computers, which are used for simulation of lithium oxide and energy. The purpose is to improve the performance and safety of lithium batteries and reduce costs. It is expected that the quality, performance and durability of next -generation lithium -ion batteries will be greatly improved by the quantum computers and speeding up the calculation. If this is realized, consumers will be able to enhance the appeal of electric vehicles (EVs).

Battery is "the most difficult technical issue" in EV development

　In an interview, IonQ's CEO (Chief Executive Officer) said in an interview, "Batteries are still the most difficult technical issues in EV development. Battery costs are EV production costs. It accounts for about half of the whole. " For this reason, the price of EVs is too high for most consumers. He said, "If the battery becomes cheaper, it will achieve the same cost as the (EV) internal combustion engine (engine) vehicle, and a wide range of spreads in the automotive market will be realized. A higher -performance battery. The appeal of EVs can be further enhanced. The most common reason for consumers hesitates to switch to EV is "the running range is limited," "charging takes time," "Battery life is short." But these issues can be solved if the quality of battery materials improves. " The EV uses an electric motor and a high -voltage / high -capacity battery pack, and also applies various types of power management / powertrain technology. EVs are expensive, but less air pollution compared to existing internal combustion locomotives. Nevertheless, in order to realize a true sustainability, it is necessary to have excellent battery technology that can reduce the burden on the transmission network (grid), and that EV itself becomes a grid components. The battery that EVs need in the future is a high -performance battery based on high -efficiency materials that can extend the mileage while replacing cobalt to reduce the impact on the environment. "Quantum computer is inevitably suitable for modeling the behavior of molecules. Both are based on quantum mechanics. Simulation of important compounds applied to batteries. He says that the result of the chemical reaction can be predicted. It may lead to the development of new raw materials that can reduce the time, costs, and effort of battery development. "

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