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# c12) United States Patent 

# Liu et al. 

# (54) ROLLED 3D ALKALI METAL BATTERIES AND PRODUCTION PROCESS 

(71) Applicant: Nanotek Instruments, Inc., Dayton, OH (US) 

(72) Inventors: Chueh Liu, Dayton, OH (US); Aruna Zhamu, Springboro, OH (US); Bor Z Jang, Centerville, OH (US) 

(73) Assignee: Global Graphene Group, Inc., Dayton, OH (US) 

( *) Notice: Subject to any disclaimer, the term ofthis patent is extended or adjusted under 35 U.S.C. 154(b) by 27 days. 

(21) Appl. No.: 15/817,942 

(22) Filed: Nov. 20, 2017 

## (65) Prior Publication Data 

US 2019/0027788 Al Jan. 24, 2019 

(63) Continuation-in-part of application No. 15/589,629, filed on May 8, 2017. 

(51) Int. Cl. 

<img src='content_image/926595.jpg'>

(52) U.S. Cl. CPC ....... H0lM 1010587 (2013.01); H0lM 41366 (2013.01); H0lM 41386 (2013.01); H0lM 41502 (2013.01); H0lM 41505 (2013.01); H0lM 41587 (2013.01); H0lM 41623 (2013.01); H0lM 41625 (2013.01); H0lM 101054 (2013.01); H0lM 1010525 (2013.01); 

## Related U.S. Application Data 

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# (IO) Patent No.: US 10,903,527 B2 

# Jan.26,2021 (45) Date of Patent: 

(58) Field of Classification Search None See application file for complete search history. 

## (56) References Cited 

PCT/US18/31363 International Search Report dated Jul. 31, 2018, 10 pages. 

Primary Examiner - Carmen V Lyles-Irving 

## (57) ABSTRACT 

Provided is a rolled alkali metal battery wherein the alkali metal is selected from Li, Na, K, or a combination thereof; the battery comprising an anode having an anode active material, a cathode containing a cathode active material, and a separator-electrolyte layer, comprising a first electrolyte alone or a first electrolyte-porous separator assembly, in ionic contact with the anode and the cathode, wherein the cathode contains a wound cathode roll of at least a discrete layer of the cathode active material and an optional binder, at least a discrete layer of a conductive material, and at least a layer of a second electrolyte, identical or different in composition than the first electrolyte, wherein the wound cathode roll has a cathode roll length, a cathode roll width, and a cathode roll thickness and the cathode roll width is substantially perpendicular to the separator-electrolyte layer. 

<img src='content_image/926610.jpg'>

US010903527B2 

HOJM 4/364 (2013.01); HOJM 4/483 (2013.01); HOJM 4/485 (2013.01); HOJM 4/525 (2013.01); 

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## U.S. PATENT DOCUMENTS 

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## OTHER PUBLICATIONS 

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## 35 Claims, 13 Drawing Sheets 

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