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Electrolytes for a metal-ion battery cell with high-capacity, micron-scale, volume-changing anode particles

專利號
US11177509B2
公開日期
2021-11-16
申請人
Sila Nanotechnologies, Inc.(US CA Alameda)
發(fā)明人
Gleb Yushin; Ashleigh Ward
IPC分類
H01M10/0569; H01M4/525; H01M4/505; H01M10/0568; H01M10/0525; H01M4/38
技術領域
elr,vol,in,li,lmp,about,solvent,anode,fec,solvents
地域: CA CA Alameda

摘要

In an embodiment, a metal-ion battery cell comprises an anode electrode, a cathode electrode, a separator, and electrolyte ionically coupling the anode electrode and the cathode electrode. The anode electrode is a high-capacity electrode (e.g., in the range of about 2 mAh/cm2 to about 10 mAh/cm2) and the cathode electrode comprises an intercalation-type active material including at least Li, one or more metals, and oxygen. The electrolyte includes a solvent composition having low-melting point (LMP) solvent(s) in the range from about 10 vol. % to about 95 vol. % of the solvent composition.

說明書

Any numerical range described herein with respect to any embodiment of the present invention is intended not only to define the upper and lower bounds of the associated numerical range, but also as an implicit disclosure of each discrete value within that range in units or increments that are consistent with the level of precision by which the upper and lower bounds are characterized. For example, a numerical distance range from 7 nm to 20 nm (i.e., a level of precision in units or increments of ones) encompasses (in nm) a set of [7, 8, 9, 10, . . . , 19, 20], as if the intervening numbers 8 through 19 in units or increments of ones were expressly disclosed. In another example, a temperature range from about ?120° C. to about ?60° C. encompasses (in ° C.) a set of temperature ranges from about ?120° C. to about ?119° C., from about ?119° C. to about ?118° C., . . . from about ?61° C. to about ?60° C., as if the intervening numbers (in ° C.) between ?120° C. and ?60° C. in incremental ranges were expressly disclosed. In yet another example, a numerical percentage range from 30.92% to 47.44% (i.e., a level of precision in units or increments of hundredths) encompasses (in %) a set of [30.92, 30.93, 30.94, . . . , 47.43, 47.44], as if the intervening numbers between 30.92 and 47.44 in units or increments of hundredths were expressly disclosed. Hence, any of the intervening numbers encompassed by any disclosed numerical range are intended to be interpreted as if those intervening numbers had been disclosed expressly, and any such intervening number may thereby constitute its own upper and/or lower bound of a sub-range that falls inside of the broader range. Each sub-range (e.g., each range that includes at least one intervening number from the broader range as an upper and/or lower bound) is thereby intended to be interpreted as being implicitly disclosed by virtue of the express disclosure of the broader range.

權利要求

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