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Active material, nonaqueous electrolyte battery, battery pack and battery module

專利號(hào)
US10096827B2
公開(kāi)日期
2018-10-09
申請(qǐng)人
KABUSHIKI KAISHA TOSHIBA（JP Minato-ku）
發(fā)明人
Yasuhiro Harada; Norio Takami; Yorikazu Yoshida; Kazuki Ise
IPC分類(lèi)
H01M4/00; H01M4/485; C01G23/00; H01M4/131; H01M4/36; H01M10/052; C01G25/00; C01G31/00; C01G33/00; C01G35/00; C01G39/00; C01G49/00; C01G51/00; H01M4/62; H01M10/0525; H01M4/02
技術(shù)領(lǐng)域
electrode,fmmm,battery,nonaqueous,composite,oxide,in,example,li2co3,lithium
地域： Minato-ku

摘要

In general, according to one embodiment, there is provided an active material. The active material contains a composite oxide having an orthorhombic crystal structure. The composite oxide is represented by a general formula of Li2+wNa2?xM1yTi6?zM2zO14+δ. In the general formula, the M1 is at least one selected from the group consisting of Cs and K; the M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Co, Mn, and Al; and w is within a range of 0≤w≤4, x is within a range of 0

說(shuō)明書(shū)

The battery module 23 shown in FIG. 9 further includes four leads 40. A lead 40 connects a negative electrode terminal 6 of one unit cell 21 and a positive electrode terminal 7 of another unit cell 21. Thus, the five unit cells 21 are electrically connected to each other in series via the four leads 40. That is, the battery module 23 of FIG. 9 is a battery module including the five unit cells connected in series.

As shown in FIG. 9, the positive electrode terminal 7 of one unit cell 21 among the five unit cells 21 is connected to a positive electrode-side lead 28 for external connection. The negative electrode terminal 6 of another unit cell 21 among the five unit cells 21 is connected to a negative electrode-side lead 30 for external connection.

Since the battery module according to the fourth embodiment includes the nonaqueous electrolyte batteries each of which is one according to the second embodiment, the battery module can provide easy charge-and-discharge management, exhibit excellent life performance, and exhibit a high energy density and a high battery voltage.

EXAMPLES

Hereinafter, the above embodiments are explained in more detail referring to Examples. The identification of a crystal phase and the estimation of a crystal structure of each of synthesized products was performed by powder X-ray diffraction using Cu—Kα rays. In addition, a composition of a product was analyzed by an ICP method to confirm that a target product was obtained.

Synthesis Example A

權(quán)利要求

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