Author
Listed:
- Yong-Gun Lee
(Samsung Electronics Co., Ltd)
- Satoshi Fujiki
(Samsung R&D Institute Japan)
- Changhoon Jung
(Samsung Electronics Co., Ltd)
- Naoki Suzuki
(Samsung R&D Institute Japan)
- Nobuyoshi Yashiro
(Samsung R&D Institute Japan)
- Ryo Omoda
(Samsung R&D Institute Japan)
- Dong-Su Ko
(Samsung Electronics Co., Ltd)
- Tomoyuki Shiratsuchi
(Samsung R&D Institute Japan)
- Toshinori Sugimoto
(Samsung Electronics Co., Ltd)
- Saebom Ryu
(Samsung Electronics Co., Ltd)
- Jun Hwan Ku
(Samsung Electronics Co., Ltd)
- Taku Watanabe
(Samsung R&D Institute Japan)
- Youngsin Park
(Samsung Electronics Co., Ltd)
- Yuichi Aihara
(Samsung R&D Institute Japan)
- Dongmin Im
(Samsung Electronics Co., Ltd)
- In Taek Han
(Samsung Electronics Co., Ltd)
Abstract
An all-solid-state battery with a lithium metal anode is a strong candidate for surpassing conventional lithium-ion battery capabilities. However, undesirable Li dendrite growth and low Coulombic efficiency impede their practical application. Here we report that a high-performance all-solid-state lithium metal battery with a sulfide electrolyte is enabled by a Ag–C composite anode with no excess Li. We show that the thin Ag–C layer can effectively regulate Li deposition, which leads to a genuinely long electrochemical cyclability. In our full-cell demonstrations, we employed a high-Ni layered oxide cathode with a high specific capacity (>210 mAh g−1) and high areal capacity (>6.8 mAh cm−2) and an argyrodite-type sulfide electrolyte. A warm isostatic pressing technique was also introduced to improve the contact between the electrode and the electrolyte. A prototype pouch cell (0.6 Ah) thus prepared exhibited a high energy density (>900 Wh l−1), stable Coulombic efficiency over 99.8% and long cycle life (1,000 times).
Suggested Citation
Yong-Gun Lee & Satoshi Fujiki & Changhoon Jung & Naoki Suzuki & Nobuyoshi Yashiro & Ryo Omoda & Dong-Su Ko & Tomoyuki Shiratsuchi & Toshinori Sugimoto & Saebom Ryu & Jun Hwan Ku & Taku Watanabe & Youn, 2020.
"High-energy long-cycling all-solid-state lithium metal batteries enabled by silver–carbon composite anodes,"
Nature Energy, Nature, vol. 5(4), pages 299-308, April.
Handle:
RePEc:nat:natene:v:5:y:2020:i:4:d:10.1038_s41560-020-0575-z
DOI: 10.1038/s41560-020-0575-z
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