2. 考研
  3. IBM research has announced a breakthrough in battery technology that it says could make lithium-ion batteries a thing of the pas

IBM research has announced a breakthrough in battery technology that it says could make lithium-ion batteries a thing of the pas

admin2022-01-20  102
问题     IBM research has announced a breakthrough in battery technology that it says could make lithium-ion batteries a thing of the past. The new technology can charge incredibly quickly, has low flammability, and contains no heavy metals, making it far more environmentally friendly than current battery technology.
    Battery performance complaints are nothing new: Lithium-ion batteries have long been one of the most frustrating parts of modern technology. They go bad, charge slowly, are prone to exploding, and are horrible for the environment. IBM’s new battery reportedly eliminates those exact headaches.
    IBM is keeping quiet about how its new battery is made, only saying that it’s made of "three new and different proprietary materials, which have never before been recorded as being combined in a battery."
    The three components, IBM said, can all be extracted from sea water, meaning the environmental damage from, and humanitarian cost of, mining heavy metals for batteries could be eliminated.
    Extracting battery components from sea water also reduces costs, IBM said, making this new battery not only better for the environment and people, but also potentially more affordable.
    Environmental friendliness isn’ t the only thing that IBM’ s new battery has going for it. According to IBM, tests of the new battery "proved it can be optimized to surpass the capabilities of lithium-ion batteries in a number of individual categories including lower costs, faster charging time, higher power and energy density, strong energy efficiency and low flammability."
    That faster charging time IBM mentioned is one of the standouts of its report on this battery breakthrough: It can reportedly reach an 80% charge in just five minutes, all without compromising discharge capacity.
    Along with that impressive recharge rate are several other performance improvements, IBM said: It can reach a power density of more than 10,000 watts per liter; It can reach an energy density of more than 800 watt hours per liter, which is comparable to modern lithium-ion batteries; It has an energy efficiency (defined by IBM as "the ratio of the energy to discharge the battery over the energy to charge the battery") of over 90%.
    IBM mentions that the battery can be configured in a number of different ways, making it ideal for multiple use cases from new energy infrastructure to electric vehicles.
    While IBM hasn’ t revealed whether its new battery technology has progressed beyond the testing phase, its blog post about the breakthrough uses promising language about its potential applications as a lithium-ion replacement.
The closest meaning of the underlined word in Paragraph 9 is________.
选项 A、arranged
B、transformed
C、assigned
D、confined
答案A
解析 词义题。根据题干定位至第九段。该句意为“IBM指出，电池可以用多种不同的方式进行________。使其成为从新能源基础设施到电动汽车等多种使用情景下的理想选择”。根据句意可以推知此处需填入一个表示“生产”“装配”的动词。观察选项，A项“安排；布置”最符合题意，为正确答案。B项“变形”、C项“指定，指派”和D项“限制，限定”均不符合题意，故排除。
转载请注明原文地址:https://kaotiyun.com/show/7Bi4777K
0

考研英语二

相关试题推荐
随机试题
最新回复(0)