Joule
·
2024
·
IF 38.6
Zuhao Yu,Qiong Wang,Yating Li,Fengyi Zhang,Xiaohui Ma,Xi Zhang,Yonggang Wang,Jianhang Huang,Yongyao Xia
Non-toxic metallic tin (Sn) possesses high hydrogen overpotential and environmental friendliness, which is favorable for high-performance aqueous batteries. However, the large particle size and irregular deposition morphology of Sn in acidic electrolyte dramatically decrease cycle stability. Here, we demonstrated that the inherent root for above issues is the high exchange current density of Sn/Sn 2+ in acidic electrolyte, and two effective approaches were presented (gelatin additives and methanesulfonic acid-based electrolyte). In particular, the methanesulfonic-acid-based electrolyte with unique complexing environment not only improves uniformity of deposited Sn but also suppresses the hydrogen evolution, conferring Sn/Sn 2+ with high average Coulombic efficiency of 99.95%. The assembled anode-free organic/Sn battery with lean electrolyte can exert unprecedented stability more than 4,000 cycles. Moreover, a scale-up anode-free battery with 23 mAh capacity sustained more than 1,000 cycles. The findings provide universal strategies to improve the stability of the Sn cycle, marking a solid step toward the practical application.
研究领域:
电化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Haizhao Yang,Haifeng Lv,En Zhou,Xiaohao Ji,Chunnian Chen,Haolei Yu,Zhaowei Sun,Dawei Zhang,Hongchang Jin,Xianghua Kong,Hengxing Ji
Sodium metal batteries (SMBs) are rising as viable alternatives to lithium-ion systems due to their superior energy density and sodium's relative abundance. However, SMBs face significant impediments, particularly the exceedingly high negative-to-positive capacity ratios (N/P ratios) which severely encumber energy density and hinder their practical application. Herein, a novel nucleophilic Na 3 P interphase on aluminum foil has been designed to significantly lower the nucleation energy barrier for sodium atom deposition, resulting in a remarkable reduction of nucleation overpotential and efficient mitigation of dendritic growth at high sodium deposition of 5 mA h cm −2 . The interphase promotes stable cycling in anode-less SMB configurations with a low N/P ratio of 1.4 and high cathode mass loading of 11.5 mg cm −2 , and demonstrates a substantial increase in high capacity retention of 92.4% after 500 cycles even under 1 C rate condition. This innovation signifies a promising leap forward in the development of high-energy-density, anode-less SMBs, offering a potential solution to the longstanding issues of cycle stability and energy efficiency.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Nature Sustainability
·
2025
·
IF 27.1
Ruan Jiafeng,Hu Jiaming,Li Qin,Luo Sainan,Yang Jinyu,Liu Yang,Song Yun,Zheng Shiyou,Sun Dalin,Fang Fang,Wang Fei
Sodium-ion batteries have emerged as one of the most promising next-generation energy storage systems. However, their widespread application is hindered by the low energy density and high cost of hard carbon anodes. Anode-free designs offer a potential solution but typically suffer from poor cycling performance due to uncontrolled Na plating and inefficient stripping. Here we report a hard-carbon-derived interphase on an aluminium current collector to construct an anode-less sodium battery (ALSB) that maintains high energy density, reduces costs and enhances cycling stability. Remarkably, the interphase layer with a low dielectric constant and strong Na interaction enables homogeneous Na nucleation, crack-free plating and efficient stripping, thereby minimizing active Na loss during cycling. As a result, our ALSB maintains good stability for up to 900 cycles and 2.3-Ah-level ALSBs show an energy density of 203 Wh kg −1 . Our findings pave the way for more sustainable batteries with competitive energy density, extended cycle life and lower costs.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Shao Ahu,Wang Helin,Zhang Min,Liu Jiacheng,Cheng Lu,Li Yunsong,Guo Yuxiang,Wang Zhiqiao,Jia Qiurong,Wang Xin,Tang Xiaoyu,Zhao Xiaodong,Ma Yue
Anode-free lithium batteries represent a promising avenue for high-energy-density storage, yet their practical application is hindered by lithium inventory loss from parasitic interfacial reactions, cathode degradation, and limited Li + reversibility. Herein, we propose a polyolefin separator integrated with a Li 2 S@C sacrificial layer, achieving multiscale interfacial stabilization in Ah-class anode-free pouch cells. This approach simultaneously replenishes the customized Li + inventory during the formation cycle and establishes the lithium polysulfide-containing cathode interface with high-voltage tolerance (till 4.5 V). Real-time tracking via in-situ electrochemical impedance spectroscopy and transmission-mode operando X-ray diffraction reveals accelerated Li + diffusion kinetics and stabilized phase evolution in LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode interfaced with Li 2 S@C|PE prelithiation separator. Consequently, a 1.22 Ah pouch cell with an Ag-modified Cu foil and LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode is assembled with Li 2 S@C|PE separator and exhibits gravimetric and volumetric energy densities of 450 Wh kg -1 and 1355 Wh L -1 , respectively. This prelithiation protocol demonstrates upscaling potential and generic applicability to secure the interfacial chemistries for anode free/less lithium metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-11
·
IF 16.6
Tang Mengyao,Dong Shuai,Wang Jiawei,Cheng Liwei,Zhu Qiaonan,Li Yanmei,Yang Xiuyi,Guo Lin,Wang Hua
In contrast to conventional batteries, anode-free configurations can extend cell-level energy densities closer to the theoretical limit. However, realizing alkali metal plating/stripping on a bare current collector with high reversibility is challenging, especially at low temperature, as an unstable solid-electrolyte interphase and uncontrolled dendrite growth occur more easily. Here, a low-temperature anode-free potassium (K) metal non-aqueous battery is reported. By introducing Si-O-based additives, namely polydimethylsiloxane, in a weak-solvation low-concentration electrolyte of 0.4 M potassium hexafluorophosphate in 1,2-dimethoxyethane, the in situ formed potassiophilic interface enables uniform K deposition, and offers K||Cu cells with an average K plating/stripping Coulombic efficiency of 99.80% at −40 °C. Consequently, anode-free Cu||prepotassiated 3,4,9,10-perylene-tetracarboxylicacid-dianhydride full batteries achieve stable cycling with a high specific energy of 152 Wh kg −1 based on the total mass of the negative and positive electrodes at 0.2 C (26 mA g −1 ) charge/discharge and −40 °C.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
Advanced Energy Materials
·
2023
·Vol. 13
·期 20
·2204388
·
IF 27.8
Cheng Wang,Dongdong Wang,Dan Lv,Huili Peng,Xinxin Song,Jian Yang,Yitai Qian
Anode-free batteriesgreatly promote overall energy density, but they require an extremely high Coulombic efficiency (CE, >99.7%) to function normally. It becomes very challenging in aqueous batteries, because of water-related parasitic reactions and dendrite growth on Zn anodes. Herein, aluminum hydroxide fluoride coated on Cu foils (Cu@AOF) is used to realize the anode-free aqueous batteries. AOF exhibits a high adsorption affinity to H 2 O and a low diffusion energy barrier for Zn adatoms, promoting the desolvation process and surface migration. Meanwhile, the strong interaction between AOF and Zn 2+ enables it to regulate the Zn 2+ flux and benefit lateral growth. Then, the anode-free full cells of Cu@AOF||Zn 0.5 VO 2 exhibit a record-high cycle life of 2000 cycles at 1 A g −1 with an ultra-high average CE of 99.95%. More impressively, the full cell shows a long cycle life of 400 cycles with a high CE of 99.94% at −20 °C. This work provides sheds light on the rational engineering of the electrode interfaces to obtain excellent performance at low temperatures.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Science Advances
·
2023
·Vol. 9
·期 39
·
IF 13.6
Rong Zhuang,Xiuhai Zhang,Changzhen Qu,Xiaosa Xu,Jiaying Yang,Qian Ye,Zhe Liu,Stefan Kaskel,Fei Xu,Hongqiang Wang
Sodium metal batteries hold great promise for energy-dense and low-cost energy storage technology but are severely impeded by catastrophic dendrite issue. State-of-the-art strategies including sodiophilic seeding/hosting interphase design manifest great success on dendrite suppression, while neglecting unavoidable interphase-depleted Na+ before plating, which poses excessive Na use, sacrificed output voltage and ultimately reduced energy density. We here demonstrate that elaborate-designed fluorinated porous framework could simultaneously realize superior sodiophilicity yet negligible interphase-consumed Na+ for dendrite-free and durable Na batteries. As elucidated by physicochemical and theoretical characterizations, well-defined fluorinated edges on porous channels are responsible for both high affinities ensuring uniform deposition and low reactivity rendering superior Na+ utilization for plating. Accordingly, synergistic performance enhancement is achieved with stable 400 cycles and superior plateau to sloping capacity ratio in anode-free batteries. Proof-of-concept pouch cells deliver an energy density of 325 Watt-hours per kilogram and robust 300 cycles under anode-less condition, opening an avenue with great extendibility for the practical deployment of metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2024
·Vol. 130
·期 7
·1-10
·
IF 2.5
Chen Wanhao,Shen Xiaowei,Huan Yunfei,Yan Chenglin,Qian Tao,Liu Xuejun
The potential application of anode-less sodium metal batteries (ALSBs) is severely affected by the irreversible depletion of sodium ions. Cathode sodium compensation (SC) additive is an effective way for sodium supplement due to its simplicity and flexibility. However, developing SC additives with no toxicity, low cost, low sensitivity to air and humidity is still a huge challenge. In this work, we propose a low-cost, environmentally friendly and air-stable organic sodium salt as sodium reservoir to compensate sodium ion, thus improving the cycle stability of ALSBs. The capacity of ALSBs with N: P as low as 0.5:1 could maintain capacity retention of 91.3% after 100 cycles with this SC additive, while the cell without this SC additive would decline to almost zero after 10 cycles. The inexpensive price and ease of preparation also make it suitable for industrialization. This work provides a realistic SC approach for improving the cycling stability for ALSBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 22
·2310925
·
IF 18.5
Xiangbiao Liao,Xiao Wang,Chong Yan,Baidu Zhang,Yong Ni,Haozhi Yuan,Yong Pan,Jun'an Pan,Jiaqi Huang
The all-in-one design of cathode and anode is a promising strategy to improve energy density and assembly efficiency for lithium batteries. However, it is an important prerequisite to combine negative and positive current collectors in a single sheet. Here, an asymmetric structure of bipolar composite current collector (BCCC), thin copper (Cu) and aluminum (Al) metal layers respectively deposited on each side of a thin polyethylene terephthalate (PET) polymer substrate is developed. Unlike conventional metal foils, the electronically insulative polymer blocks electron transfer between the cathode and anode coated on each side of BCCC. Buckling-based mechanics measurement and molecular simulation are conducted to quantitatively evaluate the interfacial strength of metal/polymer, which is enhanced by introducing an intermediate chromium (Cr) layer. For applications in anode-free wound batteries, the integrated sheet of separator/cathode/BCCC can simplify the alignment of the electrodes during the winding process. Without special surface and electrolyte optimizations, a higher Coulombic efficiency (99.1%) and larger capacity retention (50.0%) are achieved after 100 cycles in the LiNi 0.8 Co 0.1 Mn 0.1 O 2 anode-free battery than the battery using Cu foils.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Jiankun Lin,Chengwei Ma,Chunli Li,Xinyi Zou,Wen Chen,Jiangqi Zhou,Peichao Lian
Anode-free Li metal batteries are an excellent choice for developing the next generation of high-energy-density battery systems. However, due to poor chemical compatibility between the current collector and electrolyte interface, the Li electrodeposition on current collectors faces a huge challenge of rapid capacity degradation in anode-free Li metal batteries. Herein, a strategy for modifying an ultrathin black phosphorene (BP) mixed ion/electron conductor interface layer on the surface of a current collector by relying on pressure is proposed. The BP hybrid interface layer is formed in situ on the surface of the current collector solely by pressure compared with traditional current collector modification technology, and there is no powder shedding phenomenon in the absence of a binder. Moreover, the Cu-NCM811 cell matched with high mass loading cathodes exhibits excellent capacity retention and an average Coulombic efficiency of 99.1%. The relevant result has established the foundation for the development of long cycling anode-free Li metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2023
·Vol. 15
·期 37
·15318-15327
·
IF 6.7
Bo Zhou,Ting Li,Anjun Hu,Baihai Li,Runjing Li,Chuan Zhao,Nian Chen,Miao He,Jing Liu,Jianping Long
Minimizing the amount of metallic lithium (Li) to zero excess to achieve an anode-free configuration can help achieve safer, higher energy density, and more economical Li metal batteries. Nevertheless, removal of excess Li creates challenges for long-term cycling performance in Li metal batteries due to the lithiophobic copper foils as anodic current collectors. Here, we improve the long-term cycling performance of anode-free Li metal batteries by modifying the anode-free configuration. Specifically, a lithiophilic Au nanoparticle-anchored reduced graphene oxide (Au/rGO) film is used as an anodic modifier to reduce the Li nucleation overpotential and inhibit dendrite growth by forming a lithiophilic LixAu alloy and solid solution, which is convincingly evidenced by density functional theory calculations and experimentally. Meanwhile, the flexible rGO film can also act as a buffer layer to endure the volume expansion during repeated Li plating/stripping processes. In addition, the Au/rGO film promotes a homogeneous distribution of the electric field over the entire anodic surface, thus ensuring a uniform deposition of Li during the electrodeposition process, which is convincingly evidenced by finite element simulations. As expected, the Li||Au/rGO-Li half-cell shows a highly stable long-term cycling performance for at least 500 cycles at 0.5 mA cm−2 and 0.5 mA h cm−2. A Li2S-based anode-free full cell allows achieving a stable operation life of up to 200 cycles with a capacity retention of 63.3%. This work provides a simple and scalable fabrication method to achieve anode-free Li2S-based cells with high anodic interface stability and a long lifetime.
研究领域:
材料科学
·
电化学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SusMat
·
2024
·
IF 18.7
Huimin Ji,Chunlin Xie,Rui Zhang,Hao Wu,Jiawen Dai,Sihan Li,Qi Zhang,Dan Sun,Yougen Tang,Peiyu Wang,Tian Qiu,Haiyan Wang
Anode-free sodium batteries (AFSBs) have attracted increasing attention for their high energy density. However, they suffer from rapid capacity decline resulting from sodium dendrite growth at the sodium/host interface and irreversible side reactions at the electrolyte/sodium interface. Herein, a GaInSn-coated Cu foil (G-Cu), prepared by a simple brush coating method, was applied as the sodiophilic current collector to regulate sodium nucleation behavior. In addition, a nonexpendable functional electrolyte additive, hexamethyldisiloxane (HMDSO), was introduced, which could be absorbed on the sodium surface and serve as a protective layer against corrosion side reactions at the electrolyte/sodium interface. It is interesting to note that this additive barely participated in forming the solid electrolyte interphase. The synergetic effects of sodiophilic interface design and electrolyte regulation enable reversible sodium plating and stripping. Ultimately, the AFSB assembled using G-Cu and HMDSO electrolyte with a highly loaded Na 3 V 2 (PO 4 ) 3 cathode (≈12.5 mg cm −2 ) delivers a discharge capacity of 84.5 mAh g −1 after 200 cycles with a high capacity retention of 87.6%, significantly extending its operation lifespan.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）