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汉语拼音：fù jí

直流电源上电势较 低的接头，或负载（如被充电时的蓄电池等）和仪表接在直流电路中电势较低的接头。电源供电时，电流 由负极流入。负载和仪表的负极须与电路中电势较低之点相接，使电流由负极流出。

1. 亦作“ 负急 ”。急极；慌急。

   元 无名氏 《货郎旦》第三折：“諕的我身心恍然，负急处难生机变。”《二刻拍案惊奇》卷二五：“富家主翁急了，负极去求免新妇出官。”《二刻拍案惊奇》卷三九：“﹝ 嬾龙 ﹞亦且仗义疎财，偷来东西，随手散与贫穷负极之人。”

2. 电池、蓄电池等直流电源放出电子带负电的电极。干电池的锌皮就是负极。俗称阴极。

• The positive pole carries a positive charge while the negative pole does a negative charge.

  正极带正电荷,负极带负电荷.

• Some of the radiation was bent slightly toward the negative pole.

  一些射线稍稍弯向负极.

• The negative poles of two magnets will repel each other.

  两块磁铁的负极相互排斥.

• Current passes form the upper, positive side of the organ downwards to the negative , lower side.

  电流通过器官上面, 即正极面向器官下面的负极面流动.

• When the plate was connected to the negative terminal there was no current.

  如板极接到电池的负极,电流即不存在.

• Negative expander is an important component of lead - acid batteries.

  负极膨胀剂是铅酸蓄电池的重要组成部分.

• So A new method for modification graphite anode is offered.

  这为石墨负极材料的改性提供了一条新途径.

• The investigated anode materials include modified carbons, nitrides, silicides, oxides and novel alloys.

  研究的负极材料主要有:改性碳材料 、 氮化物 、 硅化物 、 氧化物和新型合金.

• Recent studies on anode materials for lithium ion secondary battery are reviewed.

  综述了最近几年来锂离子二次电池负极材料的研究.

• Disconnect and isolate negative battery cable.

  断开并隔离负极电池电缆.

• Disconnect the battery negative cable.

  断开电池负极电缆.

• The hollow cathode generates an arc discharge plasma.

  空心负极引起弧放电血浆.

• Connect negative ( ground ) cable to the battery.

  将负极 ( 地 ) 电缆连接到电瓶.

• CAW were firstly reported applied as a cathode of the lithium - ion secondary batteries in the dissertation.

  本文首次将碳原子线用作锂离子二次电池的负极材料.

• The technology of our company to manufacture anode materials is unique and the yield is 100 %.

  辉宇负极材料的生产工艺独特,成功解决了天然石墨的不稳定性问题,产品质量合格率为100%,性能优良.